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 <utility>
35#include <wtf/Forward.h>
36#include <wtf/HashMap.h>
37#include <wtf/RefCounted.h>
38#include <wtf/Vector.h>
39#include <wtf/text/WTFString.h>
40
41namespace WebCore {
42
43class StyleRuleBase;
44
45struct SourceRange {
46    SourceRange();
47    SourceRange(unsigned start, unsigned end);
48    unsigned length() const;
49
50    unsigned start;
51    unsigned end;
52};
53
54struct CSSPropertySourceData {
55    CSSPropertySourceData(const String& name, const String& value, bool important, 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 parsedOk;
66    SourceRange range;
67};
68
69struct CSSStyleSourceData : public RefCounted<CSSStyleSourceData> {
70    static PassRefPtr<CSSStyleSourceData> create()
71    {
72        return adoptRef(new CSSStyleSourceData());
73    }
74
75    Vector<CSSPropertySourceData> propertyData;
76};
77
78struct CSSRuleSourceData;
79typedef Vector<RefPtr<CSSRuleSourceData> > RuleSourceDataList;
80typedef Vector<SourceRange> SelectorRangeList;
81
82struct CSSRuleSourceData : public RefCounted<CSSRuleSourceData> {
83    enum Type {
84        UNKNOWN_RULE,
85        STYLE_RULE,
86        CHARSET_RULE,
87        IMPORT_RULE,
88        MEDIA_RULE,
89        FONT_FACE_RULE,
90        PAGE_RULE,
91        KEYFRAMES_RULE,
92        REGION_RULE,
93        HOST_RULE,
94        VIEWPORT_RULE,
95        SUPPORTS_RULE,
96#if ENABLE(CSS_SHADERS)
97        FILTER_RULE
98#endif
99    };
100
101    static PassRefPtr<CSSRuleSourceData> create(Type type)
102    {
103        return adoptRef(new CSSRuleSourceData(type));
104    }
105
106    static PassRefPtr<CSSRuleSourceData> createUnknown()
107    {
108        return adoptRef(new CSSRuleSourceData(UNKNOWN_RULE));
109    }
110
111    CSSRuleSourceData(Type type)
112        : type(type)
113    {
114        if (type == STYLE_RULE || type == FONT_FACE_RULE || type == PAGE_RULE)
115            styleSourceData = CSSStyleSourceData::create();
116    }
117
118    Type type;
119
120    // Range of the selector list in the enclosing source.
121    SourceRange ruleHeaderRange;
122
123    // Range of the rule body (e.g. style text for style rules) in the enclosing source.
124    SourceRange ruleBodyRange;
125
126    // Only for CSSStyleRules.
127    SelectorRangeList selectorRanges;
128
129    // Only for CSSStyleRules, CSSFontFaceRules, and CSSPageRules.
130    RefPtr<CSSStyleSourceData> styleSourceData;
131
132    // Only for CSSMediaRules.
133    RuleSourceDataList childRules;
134};
135
136} // namespace WebCore
137
138#endif // CSSPropertySourceData_h
139