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      1 /*
      2  * (C) 1999-2003 Lars Knoll (knoll (at) kde.org)
      3  * (C) 2002-2003 Dirk Mueller (mueller (at) 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 public:
     38     static PassRefPtr<CSSImportRule> create(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList> media)
     39     {
     40         return adoptRef(new CSSImportRule(parent, href, media));
     41     }
     42 
     43     virtual ~CSSImportRule();
     44 
     45     String href() const { return m_strHref; }
     46     MediaList* media() const { return m_lstMedia.get(); }
     47     CSSStyleSheet* styleSheet() const { return m_styleSheet.get(); }
     48 
     49     virtual String cssText() const;
     50 
     51     // Not part of the CSSOM
     52     bool isLoading() const;
     53 
     54     virtual void addSubresourceStyleURLs(ListHashSet<KURL>& urls);
     55 
     56 private:
     57     CSSImportRule(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList>);
     58 
     59     virtual bool isImportRule() { return true; }
     60     virtual void insertedIntoParent();
     61 
     62     // from CSSRule
     63     virtual unsigned short type() const { return IMPORT_RULE; }
     64 
     65     // from CachedResourceClient
     66     virtual void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CachedCSSStyleSheet*);
     67 
     68 #ifdef ANDROID_INSTRUMENT
     69     // Overridden to resolve the ambiguous
     70     void* operator new(size_t size);
     71     void* operator new[](size_t size);
     72     void operator delete(void* p, size_t size);
     73     void operator delete[](void* p, size_t size);
     74 #endif
     75 
     76     String m_strHref;
     77     RefPtr<MediaList> m_lstMedia;
     78     RefPtr<CSSStyleSheet> m_styleSheet;
     79     CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
     80     bool m_loading;
     81 };
     82 
     83 } // namespace WebCore
     84 
     85 #endif // CSSImportRule_h
     86