Add accessibility support for Textfields in Windows.

views/controls/textfield/native_textfield_win.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_WIN_H_
 #define VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_WIN_H_
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlctrls.h>
 #include <atlmisc.h>
+#include <oleacc.h>
 #include <tom.h>  // For ITextDocument, a COM interface to CRichEditCtrl
 #include <vsstyle.h>
 
 #include "app/menus/simple_menu_model.h"
 #include "base/scoped_comptr_win.h"
 #include "gfx/insets.h"
 #include "views/controls/textfield/native_textfield_wrapper.h"
 
 namespace views {
 
@@ skipping 41 matching lines @@
   virtual gfx::NativeView GetTestingHandle() const;
   virtual bool IsIMEComposing() const;
 
   // Overridden from menus::SimpleMenuModel::Delegate:
   virtual bool IsCommandIdChecked(int command_id) const;
   virtual bool IsCommandIdEnabled(int command_id) const;
   virtual bool GetAcceleratorForCommandId(int command_id,
                                           menus::Accelerator* accelerator);
   virtual void ExecuteCommand(int command_id);
 
+  // Update accessibility information.
+  void InitializeAccessibilityInfo();
+  void UpdateAccessibleState(uint32 state_flag, bool set_value);
+  void UpdateAccessibleValue(const std::wstring& value);
+
   // CWindowImpl
   BEGIN_MSG_MAP(Edit)
     MSG_WM_CHAR(OnChar)
     MSG_WM_CONTEXTMENU(OnContextMenu)
     MSG_WM_COPY(OnCopy)
     MSG_WM_CUT(OnCut)
     MESSAGE_HANDLER_EX(WM_IME_CHAR, OnImeChar)
     MESSAGE_HANDLER_EX(WM_IME_STARTCOMPOSITION, OnImeStartComposition)
     MESSAGE_HANDLER_EX(WM_IME_COMPOSITION, OnImeComposition)
     MESSAGE_HANDLER_EX(WM_IME_ENDCOMPOSITION, OnImeEndComposition)
@@ skipping 126 matching lines @@
   // text to emulate Firefox.
   bool ime_discard_composition_;
   int ime_composition_start_;
   int ime_composition_length_;
 
   // TODO(beng): remove this when we are a subclass of NativeControlWin.
   NativeViewHost* container_view_;
 
   COLORREF bg_color_;
 
+  //  The accessibility state of this object.
+  int accessibility_state_;
+
   DISALLOW_COPY_AND_ASSIGN(NativeTextfieldWin);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_WIN_H_