WebCore/CSSCursorImageValue.h

   1 /*
   2  * Copyright (C) 2006 Rob Buis <buis@kde.org>
   3  * Copyright (C) 2008 Apple Inc. All right reserved.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 #ifndef CSSCursorImageValue_h
  22 #define CSSCursorImageValue_h
  23
  24 #include "CSSImageValue.h"
  25 #include "IntPoint.h"
  26 #include <wtf/HashSet.h>
  27
  28 namespace WebCore {
  29
  30 class Element;
  31 class SVGElement;
  32
  33 class CSSCursorImageValue : public CSSImageValue {
  34 public:
  35     static PassRefPtr<CSSCursorImageValue> create(const String& url, const IntPoint& hotspot)
  36     {
  37         return adoptRef(new CSSCursorImageValue(url, hotspot));
  38     }
  39
  40     virtual ~CSSCursorImageValue();
  41
  42     IntPoint hotspot() const { return m_hotspot; }
  43
  44     bool updateIfSVGCursorIsUsed(Element*);
  45     virtual StyleCachedImage* cachedImage(DocLoader*);
  46
  47 #if ENABLE(SVG)
  48     void removeReferencedElement(SVGElement*);
  49 #endif
  50
  51 private:
  52     CSSCursorImageValue(const String& url, const IntPoint& hotspot);
  53
  54     IntPoint m_hotspot;
  55
  56 #if ENABLE(SVG)
  57     HashSet<SVGElement*> m_referencedElements;
  58 #endif
  59 };
  60
  61 } // namespace WebCore
  62
  63 #endif // CSSCursorImageValue_h