WebCore/CSSImportRule.h

   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 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& url, const String& charset, const CachedCSSStyleSheet*);
  67
  68     String m_strHref;
  69     RefPtr<MediaList> m_lstMedia;
  70     RefPtr<CSSStyleSheet> m_styleSheet;
  71     CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
  72     bool m_loading;
  73 };
  74
  75 } // namespace WebCore
  76
  77 #endif // CSSImportRule_h