ui/views/accessibility/native_view_accessibility_win.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/views/accessibility/native_view_accessibility_win.h"
   6
   7 #include <oleacc.h>
   8
   9 #include <set>
  10 #include <vector>
  11
  12 #include "base/memory/singleton.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "base/win/scoped_comptr.h"
  15 #include "base/win/windows_version.h"
  16 #include "third_party/iaccessible2/ia2_api_all.h"
  17 #include "ui/accessibility/ax_enums.h"
  18 #include "ui/accessibility/ax_text_utils.h"
  19 #include "ui/accessibility/ax_view_state.h"
  20 #include "ui/base/win/accessibility_misc_utils.h"
  21 #include "ui/base/win/atl_module.h"
  22 #include "ui/views/controls/button/custom_button.h"
  23 #include "ui/views/focus/focus_manager.h"
  24 #include "ui/views/focus/view_storage.h"
  25 #include "ui/views/widget/widget.h"
  26 #include "ui/views/win/hwnd_util.h"
  27
  28 namespace views {
  29
  30 // static
  31 NativeViewAccessibility* NativeViewAccessibility::Create(View* view) {
  32   return new NativeViewAccessibilityWin(view);
  33 }
  34
  35 NativeViewAccessibilityWin::NativeViewAccessibilityWin(View* view)
  36     : NativeViewAccessibility(view) {
  37 }
  38
  39 NativeViewAccessibilityWin::~NativeViewAccessibilityWin() {
  40 }
  41
  42 gfx::NativeViewAccessible NativeViewAccessibilityWin::GetParent() {
  43   IAccessible* parent = NativeViewAccessibility::GetParent();
  44   if (parent)
  45     return parent;
  46
  47   HWND hwnd = HWNDForView(view_);
  48   if (!hwnd)
  49     return NULL;
  50
  51   HRESULT hr = ::AccessibleObjectFromWindow(
  52       hwnd, OBJID_WINDOW, IID_IAccessible,
  53       reinterpret_cast<void**>(&parent));
  54   if (SUCCEEDED(hr))
  55     return parent;
  56
  57   return NULL;
  58 }
  59
  60 gfx::AcceleratedWidget
  61 NativeViewAccessibilityWin::GetTargetForNativeAccessibilityEvent() {
  62   return HWNDForView(view_);
  63 }
  64
  65 }  // namespace views