Tracking filter mutation via SVGElementProxy

third_party/WebKit/Source/core/svg/SVGDocumentExtensions.cpp

 /*
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  *
  * 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/svg/SVGDocumentExtensions.h"
 
 #include "core/dom/Document.h"
 #include "core/inspector/ConsoleMessage.h"
-#include "core/layout/svg/SVGResourcesCache.h"
+#include "core/svg/SVGElementProxy.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/animation/SMILTimeContainer.h"
 #include "wtf/AutoReset.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
 SVGDocumentExtensions::SVGDocumentExtensions(Document* document)
     : m_document(document)
 #if ENABLE(ASSERT)
@@ skipping 107 matching lines @@
       outerSVG->sendSVGLoadEventIfPossible();
   }
 }
 
 void SVGDocumentExtensions::reportError(const String& message) {
   ConsoleMessage* consoleMessage = ConsoleMessage::create(
       RenderingMessageSource, ErrorMessageLevel, "Error: " + message);
   m_document->addConsoleMessage(consoleMessage);
 }
 
+void SVGDocumentExtensions::attachPendingProxy(SVGElementProxy& elementProxy) {
+  DCHECK(!elementProxy.id().isEmpty());
+  auto result = m_pendingProxies.add(elementProxy.id(), nullptr);
+  if (result.isNewEntry)
+    result.storedValue->value = new SVGElementProxyTracker;
+  result.storedValue->value->attachElementProxy(elementProxy);
+}
+
+void SVGDocumentExtensions::invalidatePendingProxies(const AtomicString& id) {
+  if (id.isEmpty())
+    return;
+  if (auto pendingProxies = m_pendingProxies.take(id))
+    pendingProxies->invalidateProxies();
+}
+
 void SVGDocumentExtensions::addPendingResource(const AtomicString& id,
                                                Element* element) {
   ASSERT(element);
   ASSERT(element->isConnected());
 
   if (id.isEmpty())
     return;
 
   HeapHashMap<AtomicString, Member<SVGPendingElements>>::AddResult result =
       m_pendingResources.add(id, nullptr);
@@ skipping 189 matching lines @@
 SVGSVGElement* SVGDocumentExtensions::rootElement() const {
   ASSERT(m_document);
   return rootElement(*m_document);
 }
 
 DEFINE_TRACE(SVGDocumentExtensions) {
   visitor->trace(m_document);
   visitor->trace(m_timeContainers);
   visitor->trace(m_webAnimationsPendingSVGElements);
   visitor->trace(m_relativeLengthSVGRoots);
+  visitor->trace(m_pendingProxies);
   visitor->trace(m_pendingResources);
   visitor->trace(m_pendingResourcesForRemoval);
 }
 
 }  // namespace blink