1/*
2 * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004-2010, 2015 Apple Inc. All rights reserved.
4 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
5 * Copyright (C) 2009 - 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#pragma once
24
25#include "CSSParserContext.h"
26#include "CSSRegisteredCustomProperty.h"
27#include "CSSValue.h"
28#include "WritingMode.h"
29#include <wtf/text/WTFString.h>
30
31namespace WebCore {
32
33struct ApplyCascadedPropertyState;
34class CSSParserObserver;
35class CSSSelectorList;
36class Color;
37class Element;
38class ImmutableStyleProperties;
39class MutableStyleProperties;
40class StyleRuleBase;
41class StyleRuleKeyframe;
42class StyleSheetContents;
43class RenderStyle;
44
45class CSSParser {
46public:
47 enum class ParseResult {
48 Changed,
49 Unchanged,
50 Error
51 };
52
53 WEBCORE_EXPORT explicit CSSParser(const CSSParserContext&);
54 WEBCORE_EXPORT ~CSSParser();
55
56 enum class RuleParsing { Normal, Deferred };
57 void parseSheet(StyleSheetContents*, const String&, RuleParsing = RuleParsing::Normal);
58
59 static RefPtr<StyleRuleBase> parseRule(const CSSParserContext&, StyleSheetContents*, const String&);
60
61 RefPtr<StyleRuleKeyframe> parseKeyframeRule(const String&);
62 static std::unique_ptr<Vector<double>> parseKeyframeKeyList(const String&);
63
64 bool parseSupportsCondition(const String&);
65
66 static void parseSheetForInspector(const CSSParserContext&, StyleSheetContents*, const String&, CSSParserObserver&);
67 static void parseDeclarationForInspector(const CSSParserContext&, const String&, CSSParserObserver&);
68
69 static ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important, const CSSParserContext&);
70 static ParseResult parseCustomPropertyValue(MutableStyleProperties&, const AtomicString& propertyName, const String&, bool important, const CSSParserContext&);
71
72 static RefPtr<CSSValue> parseFontFaceDescriptor(CSSPropertyID, const String&, const CSSParserContext&);
73
74 static RefPtr<CSSValue> parseSingleValue(CSSPropertyID, const String&, const CSSParserContext& = strictCSSParserContext());
75
76 WEBCORE_EXPORT bool parseDeclaration(MutableStyleProperties&, const String&);
77 static Ref<ImmutableStyleProperties> parseInlineStyleDeclaration(const String&, const Element*);
78
79 void parseSelector(const String&, CSSSelectorList&);
80
81 RefPtr<CSSValue> parseValueWithVariableReferences(CSSPropertyID, const CSSValue&, ApplyCascadedPropertyState&);
82
83 static Color parseColor(const String&, bool strict = false);
84 static Color parseSystemColor(const String&, const CSSParserContext*);
85
86private:
87 ParseResult parseValue(MutableStyleProperties&, CSSPropertyID, const String&, bool important);
88
89 CSSParserContext m_context;
90};
91
92} // namespace WebCore
93