native_view_accessibility.cc revision 5f1c94371a64b3196d4be9466099bb892df9b88e 
1// Copyright (c) 2013 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.h"
6
7#include "ui/accessibility/ax_view_state.h"
8#include "ui/views/view.h"
9#include "ui/views/widget/widget.h"
10
11namespace views {
12
13#if !defined(OS_WIN)
14// static
15NativeViewAccessibility* NativeViewAccessibility::Create(View* view) {
16  DCHECK(view);
17  NativeViewAccessibility* instance = new NativeViewAccessibility();
18  instance->set_view(view);
19  return instance;
20}
21#endif
22
23NativeViewAccessibility::NativeViewAccessibility()
24    : view_(NULL), ax_node_(ui::AXPlatformNode::Create(this)) {
25}
26
27NativeViewAccessibility::~NativeViewAccessibility() {
28  if (ax_node_)
29    ax_node_->Destroy();
30}
31
32gfx::NativeViewAccessible NativeViewAccessibility::GetNativeObject() {
33  return ax_node_ ? ax_node_->GetNativeViewAccessible() : NULL;
34}
35
36void NativeViewAccessibility::Destroy() {
37  delete this;
38}
39
40#if !defined(OS_WIN)
41// static
42void NativeViewAccessibility::RegisterWebView(View* web_view) {
43}
44
45// static
46void NativeViewAccessibility::UnregisterWebView(View* web_view) {
47}
48#endif
49
50// ui::AXPlatformNodeDelegate
51
52ui::AXNodeData* NativeViewAccessibility::GetData() {
53  ui::AXViewState state;
54  view_->GetAccessibleState(&state);
55  data_.role = state.role;
56  data_.location = view_->GetBoundsInScreen();
57  return &data_;
58}
59
60int NativeViewAccessibility::GetChildCount() {
61  return view_->child_count();
62}
63
64gfx::NativeViewAccessible NativeViewAccessibility::ChildAtIndex(int index) {
65  if (index < 0 || index >= view_->child_count())
66    return NULL;
67  return view_->child_at(index)->GetNativeViewAccessible();
68}
69
70gfx::NativeViewAccessible NativeViewAccessibility::GetParent() {
71  if (view_->parent())
72    return view_->parent()->GetNativeViewAccessible();
73
74#if defined(OS_MACOSX)
75  if (view_->GetWidget())
76    return view_->GetWidget()->GetNativeView();
77#endif
78
79  return NULL;
80}
81
82gfx::Vector2d NativeViewAccessibility::GetGlobalCoordinateOffset() {
83  return gfx::Vector2d(0, 0);  // location is already in screen coordinates.
84}
85
86void NativeViewAccessibility::NotifyAccessibilityEvent(ui::AXEvent event_type) {
87}
88
89}  // namespace views
90