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 "core/css/CSSImageValue.h" 25 #include "platform/geometry/IntPoint.h" 26 #include "wtf/HashSet.h" 27 28 namespace blink { 29 30 class Element; 31 class SVGElement; 32 33 class CSSCursorImageValue : public CSSValue { 34 public: create(PassRefPtrWillBeRawPtr<CSSValue> imageValue,bool hasHotSpot,const IntPoint & hotSpot)35 static PassRefPtrWillBeRawPtr<CSSCursorImageValue> create(PassRefPtrWillBeRawPtr<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot) 36 { 37 return adoptRefWillBeNoop(new CSSCursorImageValue(imageValue, hasHotSpot, hotSpot)); 38 } 39 40 ~CSSCursorImageValue(); 41 hasHotSpot()42 bool hasHotSpot() const { return m_hasHotSpot; } 43 hotSpot()44 IntPoint hotSpot() const 45 { 46 if (m_hasHotSpot) 47 return m_hotSpot; 48 return IntPoint(-1, -1); 49 } 50 51 String customCSSText() const; 52 53 bool updateIfSVGCursorIsUsed(Element*); 54 StyleImage* cachedImage(ResourceFetcher*, float deviceScaleFactor); 55 StyleImage* cachedOrPendingImage(float deviceScaleFactor); 56 57 #if !ENABLE(OILPAN) 58 void removeReferencedElement(SVGElement*); 59 #endif 60 61 bool equals(const CSSCursorImageValue&) const; 62 63 void traceAfterDispatch(Visitor*); 64 65 private: 66 CSSCursorImageValue(PassRefPtrWillBeRawPtr<CSSValue> imageValue, bool hasHotSpot, const IntPoint& hotSpot); 67 68 bool isSVGCursor() const; 69 String cachedImageURL(); 70 void clearImageResource(); 71 72 RefPtrWillBeMember<CSSValue> m_imageValue; 73 74 bool m_hasHotSpot; 75 IntPoint m_hotSpot; 76 RefPtr<StyleImage> m_image; 77 bool m_accessedImage; 78 79 #if !ENABLE(OILPAN) 80 HashSet<SVGElement*> m_referencedElements; 81 #endif 82 }; 83 84 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCursorImageValue, isCursorImageValue()); 85 86 } // namespace blink 87 88 #endif // CSSCursorImageValue_h 89