1/*
2 * Copyright (c) 2010 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef CSSPropertySourceData_h
32#define CSSPropertySourceData_h
33
34#include "wtf/Forward.h"
35#include "wtf/RefCounted.h"
36#include "wtf/Vector.h"
37#include "wtf/text/WTFString.h"
38
39namespace WebCore {
40
41class StyleRuleBase;
42
43struct SourceRange {
44    SourceRange();
45    SourceRange(unsigned start, unsigned end);
46    unsigned length() const;
47
48    unsigned start;
49    unsigned end;
50};
51
52struct CSSPropertySourceData {
53    static void init();
54
55    CSSPropertySourceData(const String& name, const String& value, bool important, bool disabled, bool parsedOk, const SourceRange& range);
56    CSSPropertySourceData(const CSSPropertySourceData& other);
57    CSSPropertySourceData();
58
59    String toString() const;
60    unsigned hash() const;
61
62    String name;
63    String value;
64    bool important;
65    bool disabled;
66    bool parsedOk;
67    SourceRange range;
68};
69
70#ifndef CSSPROPERTYSOURCEDATA_HIDE_GLOBALS
71extern const CSSPropertySourceData emptyCSSPropertySourceData;
72#endif
73
74struct CSSStyleSourceData : public RefCounted<CSSStyleSourceData> {
75    static PassRefPtr<CSSStyleSourceData> create()
76    {
77        return adoptRef(new CSSStyleSourceData());
78    }
79
80    Vector<CSSPropertySourceData> propertyData;
81};
82
83struct CSSRuleSourceData;
84typedef Vector<RefPtr<CSSRuleSourceData> > RuleSourceDataList;
85typedef Vector<SourceRange> SelectorRangeList;
86
87struct CSSRuleSourceData : public RefCounted<CSSRuleSourceData> {
88    enum Type {
89        UNKNOWN_RULE,
90        STYLE_RULE,
91        CHARSET_RULE,
92        IMPORT_RULE,
93        MEDIA_RULE,
94        FONT_FACE_RULE,
95        PAGE_RULE,
96        KEYFRAMES_RULE,
97        REGION_RULE,
98        VIEWPORT_RULE,
99        SUPPORTS_RULE,
100        FILTER_RULE
101    };
102
103    static PassRefPtr<CSSRuleSourceData> create(Type type)
104    {
105        return adoptRef(new CSSRuleSourceData(type));
106    }
107
108    static PassRefPtr<CSSRuleSourceData> createUnknown()
109    {
110        return adoptRef(new CSSRuleSourceData(UNKNOWN_RULE));
111    }
112
113    CSSRuleSourceData(Type type)
114        : type(type)
115    {
116        if (type == STYLE_RULE || type == FONT_FACE_RULE || type == PAGE_RULE)
117            styleSourceData = CSSStyleSourceData::create();
118    }
119
120    Type type;
121
122    // Range of the selector list in the enclosing source.
123    SourceRange ruleHeaderRange;
124
125    // Range of the rule body (e.g. style text for style rules) in the enclosing source.
126    SourceRange ruleBodyRange;
127
128    // Only for CSSStyleRules.
129    SelectorRangeList selectorRanges;
130
131    // Only for CSSStyleRules, CSSFontFaceRules, and CSSPageRules.
132    RefPtr<CSSStyleSourceData> styleSourceData;
133
134    // Only for CSSMediaRules.
135    RuleSourceDataList childRules;
136};
137
138} // namespace WebCore
139
140#endif // CSSPropertySourceData_h
141