2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
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.
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.
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.
22 #include "core/css/CSSImageValue.h"
24 #include "FetchInitiatorTypeNames.h"
25 #include "core/css/CSSMarkup.h"
26 #include "core/dom/Document.h"
27 #include "core/fetch/CrossOriginAccessControl.h"
28 #include "core/fetch/FetchRequest.h"
29 #include "core/fetch/ImageResource.h"
30 #include "core/rendering/style/StyleFetchedImage.h"
31 #include "core/rendering/style/StylePendingImage.h"
32 #include "platform/weborigin/KURL.h"
36 CSSImageValue::CSSImageValue(const String& rawValue, const KURL& url, StyleImage* image)
37 : CSSValue(ImageClass)
38 , m_relativeURL(rawValue)
39 , m_absoluteURL(url.string())
41 , m_accessedImage(image)
45 CSSImageValue::~CSSImageValue()
49 StyleImage* CSSImageValue::cachedOrPendingImage()
52 m_image = StylePendingImage::create(this);
57 StyleFetchedImage* CSSImageValue::cachedImage(ResourceFetcher* fetcher, const ResourceLoaderOptions& options)
61 if (!m_accessedImage) {
62 m_accessedImage = true;
64 FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, options);
65 if (!m_referrer.isEmpty())
66 request.mutableResourceRequest().setHTTPReferrer(Referrer(m_referrer, ReferrerPolicyDefault));
68 if (options.corsEnabled == IsCORSEnabled)
69 request.setCrossOriginAccessControl(fetcher->document()->securityOrigin(), options.allowCredentials, options.credentialsRequested);
71 if (ResourcePtr<ImageResource> cachedImage = fetcher->fetchImage(request))
72 m_image = StyleFetchedImage::create(cachedImage.get());
75 return (m_image && m_image->isImageResource()) ? toStyleFetchedImage(m_image) : 0;
78 void CSSImageValue::restoreCachedResourceIfNeeded(Document& document)
80 if (!m_accessedImage || !m_image->isImageResource() || !document.fetcher())
82 if (document.fetcher()->cachedResource(KURL(ParsedURLString, m_absoluteURL)))
85 ImageResource* resource = m_image->cachedImage();
89 FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, resource->options());
90 document.fetcher()->requestLoadStarted(resource, request, ResourceFetcher::ResourceLoadingFromCache);
93 bool CSSImageValue::hasFailedOrCanceledSubresources() const
95 if (!m_image || !m_image->isImageResource())
97 if (Resource* cachedResource = toStyleFetchedImage(m_image)->cachedImage())
98 return cachedResource->loadFailedOrCanceled();
102 bool CSSImageValue::equals(const CSSImageValue& other) const
104 return m_absoluteURL == other.m_absoluteURL;
107 String CSSImageValue::customCSSText() const
109 return "url(" + quoteCSSURLIfNeeded(m_absoluteURL) + ")";
112 PassRefPtrWillBeRawPtr<CSSValue> CSSImageValue::cloneForCSSOM() const
114 // NOTE: We expose CSSImageValues as URI primitive values in CSSOM to maintain old behavior.
115 RefPtrWillBeRawPtr<CSSPrimitiveValue> uriValue = CSSPrimitiveValue::create(m_absoluteURL, CSSPrimitiveValue::CSS_URI);
116 uriValue->setCSSOMSafe();
117 return uriValue.release();
120 bool CSSImageValue::knownToBeOpaque(const RenderObject* renderer) const
122 return m_image ? m_image->knownToBeOpaque(renderer) : false;
125 void CSSImageValue::traceAfterDispatch(Visitor* visitor)
127 CSSValue::traceAfterDispatch(visitor);
130 void CSSImageValue::reResolveURL(const Document& document)
132 KURL url = document.completeURL(m_relativeURL);
133 if (url == m_absoluteURL)
135 m_absoluteURL = url.string();
136 m_accessedImage = false;
140 } // namespace WebCore