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 InspectorCSSOMWrappers_h
24#define InspectorCSSOMWrappers_h
25
26#include <wtf/Forward.h>
27#include <wtf/HashMap.h>
28#include <wtf/HashSet.h>
29#include <wtf/RefPtr.h>
30#include <wtf/Vector.h>
31
32namespace WebCore {
33
34class CSSStyleRule;
35class CSSStyleSheet;
36class DocumentStyleSheetCollection;
37class StyleRule;
38class StyleSheetContents;
39
40class InspectorCSSOMWrappers {
41public:
42    // WARNING. This will construct CSSOM wrappers for all style rules and cache them in a map for significant memory cost.
43    // It is here to support inspector. Don't use for any regular engine functions.
44    CSSStyleRule* getWrapperForRuleInSheets(StyleRule*, DocumentStyleSheetCollection*);
45    void collectFromStyleSheetIfNeeded(CSSStyleSheet*);
46
47private:
48    template <class ListType>
49    void collect(ListType*);
50
51    void collectFromStyleSheetContents(HashSet<RefPtr<CSSStyleSheet> >& sheetWrapperSet, StyleSheetContents*);
52    void collectFromStyleSheets(const Vector<RefPtr<CSSStyleSheet> >&);
53    void collectFromDocumentStyleSheetCollection(DocumentStyleSheetCollection*);
54
55    HashMap<StyleRule*, RefPtr<CSSStyleRule> > m_styleRuleToCSSOMWrapperMap;
56    HashSet<RefPtr<CSSStyleSheet> > m_styleSheetCSSOMWrapperSet;
57};
58
59} // namespace WebCore
60
61#endif // InspectorCSSOMWrappers_h
62