1 /*
2     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
3     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
4     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
5     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
6 
7     This library is free software; you can redistribute it and/or
8     modify it under the terms of the GNU Library General Public
9     License as published by the Free Software Foundation; either
10     version 2 of the License, or (at your option) any later version.
11 
12     This library is distributed in the hope that it will be useful,
13     but WITHOUT ANY WARRANTY; without even the implied warranty of
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15     Library General Public License for more details.
16 
17     You should have received a copy of the GNU Library General Public License
18     along with this library; see the file COPYING.LIB.  If not, write to
19     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20     Boston, MA 02110-1301, USA.
21 
22     This class provides all functionality needed for loading images, style sheets and html
23     pages from the web. It has a memory cache for these objects.
24 */
25 
26 #ifndef CachedCSSStyleSheet_h
27 #define CachedCSSStyleSheet_h
28 
29 #include "CachedResource.h"
30 #include "TextEncoding.h"
31 #include <wtf/Vector.h>
32 
33 namespace WebCore {
34 
35     class CachedResourceLoader;
36     class TextResourceDecoder;
37 
38     class CachedCSSStyleSheet : public CachedResource {
39     public:
40         CachedCSSStyleSheet(const String& URL, const String& charset);
41         virtual ~CachedCSSStyleSheet();
42 
43         const String sheetText(bool enforceMIMEType = true, bool* hasValidMIMEType = 0) const;
44 
45         virtual void didAddClient(CachedResourceClient*);
46 
47         virtual void allClientsRemoved();
48 
49         virtual void setEncoding(const String&);
50         virtual String encoding() const;
51         virtual void data(PassRefPtr<SharedBuffer> data, bool allDataReceived);
52         virtual void error(CachedResource::Status);
53 
54         void checkNotify();
55 
56     private:
57         bool canUseSheet(bool enforceMIMEType, bool* hasValidMIMEType) const;
purgePriority()58         virtual PurgePriority purgePriority() const { return PurgeLast; }
59 
60     protected:
61         RefPtr<TextResourceDecoder> m_decoder;
62         String m_decodedSheetText;
63     };
64 
65 }
66 
67 #endif
68