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 "platform/heap/Handle.h"
35#include "wtf/Forward.h"
36#include "wtf/RefCounted.h"
37#include "wtf/Vector.h"
38#include "wtf/text/WTFString.h"
39
40namespace blink {
41
42struct SourceRange {
43    ALLOW_ONLY_INLINE_ALLOCATION();
44public:
45    SourceRange();
46    SourceRange(unsigned start, unsigned end);
47    unsigned length() const;
48
49    void trace(Visitor*) { }
50
51    unsigned start;
52    unsigned end;
53};
54
55struct CSSPropertySourceData {
56    ALLOW_ONLY_INLINE_ALLOCATION();
57public:
58    CSSPropertySourceData(const String& name, const String& value, bool important, bool disabled, bool parsedOk, const SourceRange& range);
59    CSSPropertySourceData(const CSSPropertySourceData& other);
60    CSSPropertySourceData();
61
62    String toString() const;
63    unsigned hash() const;
64
65    void trace(Visitor* visitor) { visitor->trace(range); }
66
67    String name;
68    String value;
69    bool important;
70    bool disabled;
71    bool parsedOk;
72    SourceRange range;
73};
74
75struct CSSStyleSourceData : public RefCountedWillBeGarbageCollected<CSSStyleSourceData> {
76    static PassRefPtrWillBeRawPtr<CSSStyleSourceData> create()
77    {
78        return adoptRefWillBeNoop(new CSSStyleSourceData());
79    }
80
81    void trace(Visitor* visitor) { visitor->trace(propertyData); }
82
83    WillBeHeapVector<CSSPropertySourceData> propertyData;
84};
85
86struct CSSRuleSourceData;
87typedef WillBeHeapVector<RefPtrWillBeMember<CSSRuleSourceData> > RuleSourceDataList;
88typedef WillBeHeapVector<SourceRange> SelectorRangeList;
89
90struct CSSRuleSourceData : public RefCountedWillBeGarbageCollected<CSSRuleSourceData> {
91    enum Type {
92        UNKNOWN_RULE,
93        STYLE_RULE,
94        CHARSET_RULE,
95        IMPORT_RULE,
96        MEDIA_RULE,
97        FONT_FACE_RULE,
98        PAGE_RULE,
99        KEYFRAMES_RULE,
100        VIEWPORT_RULE,
101        SUPPORTS_RULE,
102        FILTER_RULE
103    };
104
105    static PassRefPtrWillBeRawPtr<CSSRuleSourceData> create(Type type)
106    {
107        return adoptRefWillBeNoop(new CSSRuleSourceData(type));
108    }
109
110    static PassRefPtrWillBeRawPtr<CSSRuleSourceData> createUnknown()
111    {
112        return adoptRefWillBeNoop(new CSSRuleSourceData(UNKNOWN_RULE));
113    }
114
115    CSSRuleSourceData(Type type)
116        : type(type)
117    {
118        if (type == STYLE_RULE || type == FONT_FACE_RULE || type == PAGE_RULE)
119            styleSourceData = CSSStyleSourceData::create();
120    }
121
122    void trace(Visitor*);
123
124    Type type;
125
126    // Range of the selector list in the enclosing source.
127    SourceRange ruleHeaderRange;
128
129    // Range of the rule body (e.g. style text for style rules) in the enclosing source.
130    SourceRange ruleBodyRange;
131
132    // Only for CSSStyleRules.
133    SelectorRangeList selectorRanges;
134
135    // Only for CSSStyleRules, CSSFontFaceRules, and CSSPageRules.
136    RefPtrWillBeMember<CSSStyleSourceData> styleSourceData;
137
138    // Only for CSSMediaRules.
139    RuleSourceDataList childRules;
140};
141
142} // namespace blink
143
144WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::SourceRange);
145WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::CSSPropertySourceData);
146
147#endif // CSSPropertySourceData_h
148