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 PassRef<CSSCursorImageValue> create(PassRef<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot) 37 { 38 return adoptRef(*new CSSCursorImageValue(WTF::move(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 void removeReferencedElement(SVGElement*); 59 60 bool equals(const CSSCursorImageValue&) const; 61 62private: 63 CSSCursorImageValue(PassRef<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot); 64 65 void detachPendingImage(); 66 67 bool isSVGCursor() const; 68 String cachedImageURL(); 69 void clearCachedImage(); 70 71 Ref<CSSValue> m_imageValue; 72 73 bool m_hasHotSpot; 74 IntPoint m_hotSpot; 75 RefPtr<StyleImage> m_image; 76 bool m_accessedImage; 77 78 HashSet<SVGElement*> m_referencedElements; 79}; 80 81CSS_VALUE_TYPE_CASTS(CSSCursorImageValue, isCursorImageValue()) 82 83} // namespace WebCore 84 85#endif // CSSCursorImageValue_h 86