[Experimental] CSSSerializer Proof-of-concept

third_party/WebKit/Source/core/css/CSSImageValue.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "core/css/CSSImageValue.h"
 
 #include "core/css/CSSMarkup.h"
+#include "core/css/serializer/CSSDeserializeStream.h"
+#include "core/css/serializer/CSSSerializeStream.h"
 #include "core/dom/Document.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/ImageResource.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/loader/MixedContentChecker.h"
 #include "core/style/StyleFetchedImage.h"
 #include "platform/CrossOriginAttributeValue.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityPolicy.h"
 
 namespace blink {
 
 CSSImageValue::CSSImageValue(const AtomicString& rawValue, const KURL& url, StyleFetchedImage* image)
     : CSSValue(ImageClass)
     , m_relativeURL(rawValue)
     , m_absoluteURL(url.string())
     , m_isCachePending(!image)
     , m_cachedImage(image)
 {
 }
 
 CSSImageValue::~CSSImageValue()
 {
 }
 
+PassRefPtrWillBeRawPtr<CSSImageValue> CSSImageValue::deserializeAfterDispatch(CSSDeserializeStream* stream)
+{
+    AtomicString relativeURL = stream->readAtomicString();
+    AtomicString absoluteURL = stream->readAtomicString();
+    Referrer referrer = stream->readReferrer();
+    AtomicString initiatorName = stream->readAtomicString();
+    
+    return adoptRefWillBeNoop(new CSSImageValue(relativeURL, absoluteURL, referrer, initiatorName));
+}
+
+CSSImageValue::CSSImageValue(AtomicString relativeURL, AtomicString absoluteURL, const Referrer& referrer, AtomicString initiatorName)
+    : CSSValue(ImageClass)
+    , m_relativeURL(relativeURL)
+    , m_absoluteURL(absoluteURL)
+    , m_referrer(referrer)
+    , m_isCachePending(true)
+    , m_cachedImage(nullptr)
+    , m_initiatorName(initiatorName)
+{ 
+}
+
 StyleFetchedImage* CSSImageValue::cacheImage(Document* document, CrossOriginAttributeValue crossOrigin)
 {
     ASSERT(document);
 
     if (m_isCachePending) {
         m_isCachePending = false;
 
         FetchRequest request(ResourceRequest(m_absoluteURL), m_initiatorName.isEmpty() ? FetchInitiatorTypeNames::css : m_initiatorName);
         request.mutableResourceRequest().setHTTPReferrer(SecurityPolicy::generateReferrer(m_referrer.referrerPolicy, request.url(), m_referrer.referrer));
 
@@ skipping 41 matching lines @@
 String CSSImageValue::customCSSText() const
 {
     return serializeURI(m_relativeURL);
 }
 
 bool CSSImageValue::knownToBeOpaque(const LayoutObject* layoutObject) const
 {
     return m_cachedImage ? m_cachedImage->knownToBeOpaque(layoutObject) : false;
 }
 
+void CSSImageValue::serializeAfterDispatch(CSSSerializeStream* stream) const
+{
+    stream->writeAtomicString(m_relativeURL);
+    stream->writeAtomicString(m_absoluteURL);
+    stream->writeReferrer(m_referrer);
+    stream->writeAtomicString(m_initiatorName);
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(CSSImageValue)
 {
     visitor->trace(m_cachedImage);
     CSSValue::traceAfterDispatch(visitor);
 }
 
 void CSSImageValue::reResolveURL(const Document& document)
 {
     KURL url = document.completeURL(m_relativeURL);
     AtomicString urlString(url.string());
     if (urlString == m_absoluteURL)
         return;
     m_absoluteURL = urlString;
     m_isCachePending = true;
     m_cachedImage.clear();
 }
 
 } // namespace blink