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3bccf6139d
This was used to skip caching sheets across documents that had failed resource loads so that when you loaded a new tab with the same resource we'd attempt to load it again. The cross document cache (which was only used by <link>) doesn't exist in Sky, and neither does CSSStyleSheetResource which used it, so we can remove all this code. R=ojan@chromium.org Review URL: https://codereview.chromium.org/799113003
122 lines
4.0 KiB
C++
122 lines
4.0 KiB
C++
/*
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* (C) 1999-2003 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/core/css/CSSImageValue.h"
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#include "gen/sky/core/FetchInitiatorTypeNames.h"
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#include "sky/engine/core/css/CSSMarkup.h"
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#include "sky/engine/core/dom/Document.h"
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#include "sky/engine/core/fetch/FetchRequest.h"
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#include "sky/engine/core/fetch/ImageResource.h"
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#include "sky/engine/core/rendering/style/StyleFetchedImage.h"
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#include "sky/engine/core/rendering/style/StylePendingImage.h"
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#include "sky/engine/platform/weborigin/KURL.h"
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namespace blink {
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CSSImageValue::CSSImageValue(const String& rawValue, const KURL& url, StyleImage* image)
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: CSSValue(ImageClass)
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, m_relativeURL(rawValue)
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, m_absoluteURL(url.string())
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, m_image(image)
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, m_accessedImage(image)
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{
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}
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CSSImageValue::~CSSImageValue()
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{
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}
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StyleImage* CSSImageValue::cachedOrPendingImage()
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{
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if (!m_image)
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m_image = StylePendingImage::create(this);
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return m_image.get();
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}
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StyleFetchedImage* CSSImageValue::cachedImage(ResourceFetcher* fetcher, const ResourceLoaderOptions& options)
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{
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ASSERT(fetcher);
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if (!m_accessedImage) {
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m_accessedImage = true;
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FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, options);
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request.mutableResourceRequest().setHTTPReferrer(m_referrer);
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if (ResourcePtr<ImageResource> cachedImage = fetcher->fetchImage(request))
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m_image = StyleFetchedImage::create(cachedImage.get());
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}
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return (m_image && m_image->isImageResource()) ? toStyleFetchedImage(m_image) : 0;
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}
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void CSSImageValue::restoreCachedResourceIfNeeded(Document& document)
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{
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if (!m_accessedImage || !m_image->isImageResource() || !document.fetcher())
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return;
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if (document.fetcher()->cachedResource(KURL(ParsedURLString, m_absoluteURL)))
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return;
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ImageResource* resource = m_image->cachedImage();
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if (!resource)
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return;
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FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName, resource->options());
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document.fetcher()->requestLoadStarted(resource, request, ResourceFetcher::ResourceLoadingFromCache);
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}
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bool CSSImageValue::equals(const CSSImageValue& other) const
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{
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return m_absoluteURL == other.m_absoluteURL;
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}
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String CSSImageValue::customCSSText() const
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{
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return "url(" + quoteCSSURLIfNeeded(m_absoluteURL) + ")";
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}
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PassRefPtr<CSSValue> CSSImageValue::cloneForCSSOM() const
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{
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// NOTE: We expose CSSImageValues as URI primitive values in CSSOM to maintain old behavior.
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RefPtr<CSSPrimitiveValue> uriValue = CSSPrimitiveValue::create(m_absoluteURL, CSSPrimitiveValue::CSS_URI);
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uriValue->setCSSOMSafe();
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return uriValue.release();
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}
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bool CSSImageValue::knownToBeOpaque(const RenderObject* renderer) const
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{
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return m_image ? m_image->knownToBeOpaque(renderer) : false;
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}
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void CSSImageValue::reResolveURL(const Document& document)
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{
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KURL url = document.completeURL(m_relativeURL);
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if (url == m_absoluteURL)
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return;
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m_absoluteURL = url.string();
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m_accessedImage = false;
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m_image.clear();
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}
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} // namespace blink
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