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 "core/css/CSSValue.h" 25#include "core/fetch/ResourceFetcher.h" 26#include "platform/weborigin/Referrer.h" 27#include "wtf/RefPtr.h" 28 29namespace blink { 30 31class Document; 32class KURL; 33class StyleFetchedImage; 34class StyleImage; 35class RenderObject; 36 37class CSSImageValue : public CSSValue { 38public: 39 static PassRefPtrWillBeRawPtr<CSSImageValue> create(const KURL& url, StyleImage* image = 0) 40 { 41 return adoptRefWillBeNoop(new CSSImageValue(url, url, image)); 42 } 43 static PassRefPtrWillBeRawPtr<CSSImageValue> create(const String& rawValue, const KURL& url, StyleImage* image = 0) 44 { 45 return adoptRefWillBeNoop(new CSSImageValue(rawValue, url, image)); 46 } 47 ~CSSImageValue(); 48 49 StyleFetchedImage* cachedImage(ResourceFetcher*, const ResourceLoaderOptions&); 50 StyleFetchedImage* cachedImage(ResourceFetcher* fetcher) { return cachedImage(fetcher, ResourceFetcher::defaultResourceOptions()); } 51 // Returns a StyleFetchedImage if the image is cached already, otherwise a StylePendingImage. 52 StyleImage* cachedOrPendingImage(); 53 54 const String& url() { return m_absoluteURL; } 55 56 void setReferrer(const Referrer& referrer) { m_referrer = referrer; } 57 const Referrer& referrer() const { return m_referrer; } 58 59 void reResolveURL(const Document&); 60 61 String customCSSText() const; 62 63 PassRefPtrWillBeRawPtr<CSSValue> cloneForCSSOM() const; 64 65 bool hasFailedOrCanceledSubresources() const; 66 67 bool equals(const CSSImageValue&) const; 68 69 bool knownToBeOpaque(const RenderObject*) const; 70 71 void setInitiator(const AtomicString& name) { m_initiatorName = name; } 72 73 void traceAfterDispatch(Visitor*); 74 void restoreCachedResourceIfNeeded(Document&); 75 76private: 77 CSSImageValue(const String& rawValue, const KURL&, StyleImage*); 78 79 String m_relativeURL; 80 String m_absoluteURL; 81 Referrer m_referrer; 82 RefPtr<StyleImage> m_image; 83 bool m_accessedImage; 84 AtomicString m_initiatorName; 85}; 86 87DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageValue, isImageValue()); 88 89} // namespace blink 90 91#endif // CSSImageValue_h 92