1 /* 2 * (C) 1999-2003 Lars Knoll (knoll (at) 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 29 namespace WebCore { 30 31 class Document; 32 class Element; 33 class KURL; 34 class StyleFetchedImage; 35 class StyleImage; 36 class RenderObject; 37 38 class CSSImageValue : public CSSValue { 39 public: 40 static PassRefPtrWillBeRawPtr<CSSImageValue> create(const KURL& url, StyleImage* image = 0) 41 { 42 return adoptRefWillBeNoop(new CSSImageValue(url, url, image)); 43 } 44 static PassRefPtrWillBeRawPtr<CSSImageValue> create(const String& rawValue, const KURL& url, StyleImage* image = 0) 45 { 46 return adoptRefWillBeNoop(new CSSImageValue(rawValue, url, image)); 47 } 48 ~CSSImageValue(); 49 50 StyleFetchedImage* cachedImage(ResourceFetcher*, const ResourceLoaderOptions&); 51 StyleFetchedImage* cachedImage(ResourceFetcher* fetcher) { return cachedImage(fetcher, ResourceFetcher::defaultResourceOptions()); } 52 // Returns a StyleFetchedImage if the image is cached already, otherwise a StylePendingImage. 53 StyleImage* cachedOrPendingImage(); 54 55 const String& url() { return m_absoluteURL; } 56 57 void setReferrer(const Referrer& referrer) { m_referrer = referrer; } 58 const Referrer& referrer() const { return m_referrer; } 59 60 void reResolveURL(const Document&); 61 62 String customCSSText() const; 63 64 PassRefPtrWillBeRawPtr<CSSValue> cloneForCSSOM() const; 65 66 bool hasFailedOrCanceledSubresources() const; 67 68 bool equals(const CSSImageValue&) const; 69 70 bool knownToBeOpaque(const RenderObject*) const; 71 72 void setInitiator(const AtomicString& name) { m_initiatorName = name; } 73 74 void traceAfterDispatch(Visitor*); 75 void restoreCachedResourceIfNeeded(Document&); 76 77 private: 78 CSSImageValue(const String& rawValue, const KURL&, StyleImage*); 79 80 String m_relativeURL; 81 String m_absoluteURL; 82 Referrer m_referrer; 83 RefPtr<StyleImage> m_image; 84 bool m_accessedImage; 85 AtomicString m_initiatorName; 86 }; 87 88 DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageValue, isImageValue()); 89 90 } // namespace WebCore 91 92 #endif // CSSImageValue_h 93