Re-land: Initial skeleton of Accessibility Object Model Phase 1

third_party/WebKit/Source/core/dom/ElementRareData.h

 /*
  * Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 David Smith <catfish.man@gmail.com>
  *
  * 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.
  *
  */
 
 #ifndef ElementRareData_h
 #define ElementRareData_h
 
+#include <memory>
 #include "bindings/core/v8/ScriptWrappableVisitor.h"
 #include "core/animation/ElementAnimations.h"
 #include "core/css/cssom/InlineStylePropertyMap.h"
+#include "core/dom/AccessibleNode.h"
 #include "core/dom/Attr.h"
 #include "core/dom/CompositorProxiedPropertySet.h"
 #include "core/dom/DatasetDOMStringMap.h"
 #include "core/dom/ElementIntersectionObserverData.h"
 #include "core/dom/NamedNodeMap.h"
 #include "core/dom/NodeRareData.h"
 #include "core/dom/PseudoElement.h"
 #include "core/dom/PseudoElementData.h"
 #include "core/dom/custom/CustomElementDefinition.h"
 #include "core/dom/custom/V0CustomElementDefinition.h"
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/html/ClassList.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashSet.h"
-#include <memory>
 
 namespace blink {
 
 class LayoutObject;
 class CompositorProxiedPropertySet;
 class ResizeObservation;
 class ResizeObserver;
 
 class ElementRareData : public NodeRareData {
  public:
@@ skipping 93 matching lines @@
     return m_v0CustomElementDefinition.get();
   }
 
   void setCustomElementDefinition(CustomElementDefinition* definition) {
     m_customElementDefinition = definition;
   }
   CustomElementDefinition* customElementDefinition() const {
     return m_customElementDefinition.get();
   }
 
+  AccessibleNode* accessibleNode() const { return m_accessibleNode.get(); }
+  AccessibleNode* ensureAccessibleNode(Element* ownerElement) {
+    if (!m_accessibleNode) {
+      m_accessibleNode = new AccessibleNode(ownerElement);
+      ScriptWrappableVisitor::writeBarrier(this, m_accessibleNode);
+    }
+    return m_accessibleNode;
+  }
+
   AttrNodeList& ensureAttrNodeList();
   AttrNodeList* attrNodeList() { return m_attrNodeList.get(); }
   void removeAttrNodeList() { m_attrNodeList.clear(); }
   void addAttr(Attr* attr) {
     ensureAttrNodeList().push_back(attr);
     ScriptWrappableVisitor::writeBarrier(this, attr);
   }
 
   ElementIntersectionObserverData* intersectionObserverData() const {
     return m_intersectionObserverData.get();
@@ skipping 37 matching lines @@
   Member<ElementIntersectionObserverData> m_intersectionObserverData;
   Member<ResizeObserverDataMap> m_resizeObserverData;
 
   RefPtr<ComputedStyle> m_computedStyle;
   // TODO(davaajav):remove this field when v0 custom elements are deprecated
   Member<V0CustomElementDefinition> m_v0CustomElementDefinition;
   Member<CustomElementDefinition> m_customElementDefinition;
 
   Member<PseudoElementData> m_pseudoElementData;
 
+  Member<AccessibleNode> m_accessibleNode;
+
   explicit ElementRareData(LayoutObject*);
 };
 
 DEFINE_TRAIT_FOR_TRACE_WRAPPERS(ElementRareData);
 
 inline LayoutSize defaultMinimumSizeForResizing() {
   return LayoutSize(LayoutUnit::max(), LayoutUnit::max());
 }
 
 inline ElementRareData::ElementRareData(LayoutObject* layoutObject)
@@ skipping 46 matching lines @@
 inline CompositorProxiedPropertySet&
 ElementRareData::ensureCompositorProxiedPropertySet() {
   if (!m_proxiedProperties)
     m_proxiedProperties = CompositorProxiedPropertySet::create();
   return *m_proxiedProperties;
 }
 
 }  // namespace blink
 
 #endif  // ElementRareData_h