Adds propagation and handling of render-side focus events, for the benefit of...

webkit/glue/webaccessibilitymanager_impl.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_IMPL_H_
 #define WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_IMPL_H_
 
 #include "base/hash_tables.h"
 #include "webkit/glue/webaccessibilitymanager.h"
 
 class GlueAccessibilityObject;
 
-namespace webkit_glue {
-typedef base::hash_map<int, GlueAccessibilityObject*> IntToAccObjMap;
-typedef base::hash_map<GlueAccessibilityObject*, int> AccObjToIntMap;
-
 ////////////////////////////////////////////////////////////////////////////////
 //
 // WebAccessibilityManagerImpl
 //
 //
 // Implements WebAccessibilityManager.
 // Responds to incoming accessibility requests from the browser side. Retrieves
 // the requested information from the active AccessibilityObject, through the
 // GlueAccessibilityObject.
 ////////////////////////////////////////////////////////////////////////////////
+
+namespace webkit_glue {
+
 class WebAccessibilityManagerImpl : public WebAccessibilityManager {
  public:
   // From WebAccessibilityManager.
   bool GetAccObjInfo(WebView* view, const WebAccessibility::InParams& in_params,
                      WebAccessibility::OutParams* out_params);
-
-  // From WebAccessibilityManager.
   bool ClearAccObjMap(int acc_obj_id, bool clear_all);
+  int FocusAccObj(WebCore::AccessibilityObject* acc_obj);
 
  protected:
   // Needed so WebAccessibilityManager::Create can call our constructor.
   friend class WebAccessibilityManager;
 
   WebAccessibilityManagerImpl();
-  ~WebAccessibilityManagerImpl() {}
+  ~WebAccessibilityManagerImpl();
 
  private:
   // From WebAccessibilityManager.
   bool InitAccObjRoot(WebView* view);
 
   // Wrapper around the pointer that holds the root of the AccessibilityObject
   // tree, to allow the use of a scoped_refptr.
   struct GlueAccessibilityObjectRoot;
   GlueAccessibilityObjectRoot* root_;
 
+  typedef base::hash_map<int, GlueAccessibilityObject*> IntToGlueAccObjMap;
+  typedef base::hash_map<WebCore::AccessibilityObject*, int> AccObjToIntMap;
+
   // Hashmap for cashing of elements in use by the AT, mapping id (int) to a
   // GlueAccessibilityObject pointer.
-  IntToAccObjMap int_to_acc_obj_map_;
+  IntToGlueAccObjMap int_to_glue_acc_obj_map_;
   // Hashmap for cashing of elements in use by the AT, mapping a
-  // GlueAccessibilityObject pointer to its id (int). Needed for reverse lookup,
+  // AccessibilityObject pointer to its id (int). Needed for reverse lookup,
   // to ensure unnecessary duplicate entries are not created in the
-  // IntToAccObjMap (above).
+  // IntToGlueAccObjMap (above) and for focus changes in WebKit.
   AccObjToIntMap acc_obj_to_int_map_;
 
-  // Unique identifier for retrieving a GlueAccessibilityObject from the page's
-  // hashmaps.
+  // Unique identifier for retrieving an accessibility object from the page's
+  // hashmaps. Id is always 0 for the root of the accessibility object
+  // hierarchy (on a per-renderer process basis).
   int acc_obj_id_;
 
   DISALLOW_COPY_AND_ASSIGN(WebAccessibilityManagerImpl);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_IMPL_H_