Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / core / css / TreeBoundaryCrossingRules.h
1 /*
2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
4  * Copyright (C) 2013 Google Inc. All rights reserved.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB.  If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  *
21  */
22
23 #ifndef TreeBoundaryCrossingRules_h
24 #define TreeBoundaryCrossingRules_h
25
26 #include "core/css/RuleSet.h"
27 #include "core/dom/DocumentOrderedList.h"
28
29 #include "wtf/OwnPtr.h"
30 #include "wtf/RefPtr.h"
31 #include "wtf/Vector.h"
32
33 namespace blink {
34
35 class CSSStyleSheet;
36 class ContainerNode;
37 class ElementRuleCollector;
38 class RuleFeatureSet;
39
40 class TreeBoundaryCrossingRules final {
41     DISALLOW_ALLOCATION();
42 public:
43     void addTreeBoundaryCrossingRules(const RuleSet&, CSSStyleSheet*, unsigned sheetIndex, ContainerNode&);
44
45     void reset(const ContainerNode* scopingNode);
46     void collectFeaturesTo(RuleFeatureSet&);
47     void collectTreeBoundaryCrossingRules(Element*, ElementRuleCollector&, bool includeEmptyRules);
48
49     void trace(Visitor*);
50
51 private:
52     size_t size() const { return m_scopingNodes.size(); }
53     class RuleSubSet final : public NoBaseWillBeGarbageCollected<RuleSubSet> {
54     public:
55         static PassOwnPtrWillBeRawPtr<RuleSubSet> create(CSSStyleSheet* sheet, unsigned index, PassOwnPtrWillBeRawPtr<RuleSet> rules)
56         {
57             return adoptPtrWillBeNoop(new RuleSubSet(sheet, index, rules));
58         }
59
60         CSSStyleSheet* parentStyleSheet;
61         unsigned parentIndex;
62         OwnPtrWillBeMember<RuleSet> ruleSet;
63
64         void trace(Visitor*);
65
66     private:
67         RuleSubSet(CSSStyleSheet* sheet, unsigned index, PassOwnPtrWillBeRawPtr<RuleSet> rules)
68             : parentStyleSheet(sheet)
69             , parentIndex(index)
70             , ruleSet(rules)
71         {
72         }
73     };
74     typedef WillBeHeapVector<OwnPtrWillBeMember<RuleSubSet> > CSSStyleSheetRuleSubSet;
75     void collectFeaturesFromRuleSubSet(CSSStyleSheetRuleSubSet*, RuleFeatureSet&);
76
77     DocumentOrderedList m_scopingNodes;
78     typedef WillBeHeapHashMap<RawPtrWillBeMember<const ContainerNode>, OwnPtrWillBeMember<CSSStyleSheetRuleSubSet> > TreeBoundaryCrossingRuleSetMap;
79     TreeBoundaryCrossingRuleSetMap m_treeBoundaryCrossingRuleSetMap;
80 };
81
82 } // namespace blink
83
84 #endif // TreeBoundaryCrossingRules_h