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 28namespace WebCore { 29 30class Document; 31class Element; 32class SVGElement; 33 34class CSSCursorImageValue : public CSSValue { 35public: 36 static PassRefPtr<CSSCursorImageValue> create(PassRefPtr<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot) 37 { 38 return adoptRef(new CSSCursorImageValue(imageValue, hasHotSpot, hotSpot)); 39 } 40 41 ~CSSCursorImageValue(); 42 43 bool hasHotSpot() const { return m_hasHotSpot; } 44 45 IntPoint hotSpot() const 46 { 47 if (m_hasHotSpot) 48 return m_hotSpot; 49 return IntPoint(-1, -1); 50 } 51 52 String customCssText() const; 53 54 bool updateIfSVGCursorIsUsed(Element*); 55 StyleImage* cachedImage(CachedResourceLoader*); 56 StyleImage* cachedOrPendingImage(Document*); 57 58#if ENABLE(SVG) 59 void removeReferencedElement(SVGElement*); 60#endif 61 62 bool equals(const CSSCursorImageValue&) const; 63 64private: 65 CSSCursorImageValue(PassRefPtr<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot); 66 67 void detachPendingImage(); 68 69#if ENABLE(SVG) 70 bool isSVGCursor() const; 71 String cachedImageURL(); 72 void clearCachedImage(); 73#endif 74 75 RefPtr<CSSValue> m_imageValue; 76 77 bool m_hasHotSpot; 78 IntPoint m_hotSpot; 79 RefPtr<StyleImage> m_image; 80 bool m_accessedImage; 81 82#if ENABLE(SVG) 83 HashSet<SVGElement*> m_referencedElements; 84#endif 85}; 86 87} // namespace WebCore 88 89#endif // CSSCursorImageValue_h 90