1/* 2 * (C) 1999-2003 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2008, 2012 Apple Inc. All rights 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 CSSImageValue_h 22#define CSSImageValue_h 23 24#include "CSSValue.h" 25#include <wtf/RefPtr.h> 26 27namespace WebCore { 28 29class CachedResourceLoader; 30class Element; 31class StyleCachedImage; 32class StyleImage; 33class RenderObject; 34 35class CSSImageValue : public CSSValue { 36public: 37 static PassRefPtr<CSSImageValue> create(const String& url) { return adoptRef(new CSSImageValue(url)); } 38 static PassRefPtr<CSSImageValue> create(const String& url, StyleImage* image) { return adoptRef(new CSSImageValue(url, image)); } 39 ~CSSImageValue(); 40 41 StyleCachedImage* cachedImage(CachedResourceLoader*); 42 // Returns a StyleCachedImage if the image is cached already, otherwise a StylePendingImage. 43 StyleImage* cachedOrPendingImage(); 44 45 const String& url() { return m_url; } 46 47 String customCssText() const; 48 49 PassRefPtr<CSSValue> cloneForCSSOM() const; 50 51 bool hasFailedOrCanceledSubresources() const; 52 53 bool equals(const CSSImageValue&) const; 54 55 bool knownToBeOpaque(const RenderObject*) const; 56 57 void setInitiator(const AtomicString& name) { m_initiatorName = name; } 58 59private: 60 explicit CSSImageValue(const String& url); 61 CSSImageValue(const String& url, StyleImage*); 62 void detachPendingImage(); 63 64 String m_url; 65 RefPtr<StyleImage> m_image; 66 bool m_accessedImage; 67 AtomicString m_initiatorName; 68}; 69 70} // namespace WebCore 71 72#endif // CSSImageValue_h 73