1 /*
2  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
4  * Copyright (C) 2002, 2006, 2008 Apple 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 #ifndef CSSImportRule_h
23 #define CSSImportRule_h
24 
25 #include "CSSRule.h"
26 #include "CachedResourceClient.h"
27 #include "CachedResourceHandle.h"
28 #include "MediaList.h"
29 #include "PlatformString.h"
30 
31 namespace WebCore {
32 
33 class CachedCSSStyleSheet;
34 class MediaList;
35 
36 class CSSImportRule : public CSSRule, private CachedResourceClient {
37     WTF_MAKE_FAST_ALLOCATED;
38 public:
create(CSSStyleSheet * parent,const String & href,PassRefPtr<MediaList> media)39     static PassRefPtr<CSSImportRule> create(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList> media)
40     {
41         return adoptRef(new CSSImportRule(parent, href, media));
42     }
43 
44     virtual ~CSSImportRule();
45 
href()46     String href() const { return m_strHref; }
media()47     MediaList* media() const { return m_lstMedia.get(); }
styleSheet()48     CSSStyleSheet* styleSheet() const { return m_styleSheet.get(); }
49 
50     virtual String cssText() const;
51 
52     // Not part of the CSSOM
53     bool isLoading() const;
54 
55     virtual void addSubresourceStyleURLs(ListHashSet<KURL>& urls);
56 
57 private:
58     CSSImportRule(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList>);
59 
isImportRule()60     virtual bool isImportRule() { return true; }
61     virtual void insertedIntoParent();
62 
63     // from CSSRule
type()64     virtual unsigned short type() const { return IMPORT_RULE; }
65 
66     // from CachedResourceClient
67     virtual void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CachedCSSStyleSheet*);
68 
69     String m_strHref;
70     RefPtr<MediaList> m_lstMedia;
71     RefPtr<CSSStyleSheet> m_styleSheet;
72     CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
73     bool m_loading;
74 };
75 
76 } // namespace WebCore
77 
78 #endif // CSSImportRule_h
79