Removes all use of COM and dependencies on Windows-specific classes (includin...

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.
+////////////////////////////////////////////////////////////////////////////////
+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);
+
+ protected:
+  // Needed so WebAccessibilityManager::Create can call our constructor.
+  friend class WebAccessibilityManager;
+
+  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_;
+
+  // Hashmap for cashing of elements in use by the AT, mapping id (int) to a
+  // GlueAccessibilityObject pointer.
+  IntToAccObjMap int_to_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,
+  // to ensure unnecessary duplicate entries are not created in the
+  // IntToAccObjMap (above).
+  AccObjToIntMap acc_obj_to_int_map_;
+
+  // Unique identifier for retrieving a GlueAccessibilityObject from the page's
+  // hashmaps.
+  int acc_obj_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebAccessibilityManagerImpl);
+};
+
+};  // namespace webkit_glue
+
+#endif  // WEBKIT_GLUE_WEBACCESSIBILITYMANAGER_IMPL_H_