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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 
11 namespace views {
12 
13 #if !defined(OS_WIN)
14 // static
Create(View * view)15 NativeViewAccessibility* NativeViewAccessibility::Create(View* view) {
16   DCHECK(view);
17   NativeViewAccessibility* instance = new NativeViewAccessibility();
18   instance->set_view(view);
19   return instance;
20 }
21 #endif
22 
NativeViewAccessibility()23 NativeViewAccessibility::NativeViewAccessibility()
24     : view_(NULL), ax_node_(ui::AXPlatformNode::Create(this)) {
25 }
26 
~NativeViewAccessibility()27 NativeViewAccessibility::~NativeViewAccessibility() {
28   if (ax_node_)
29     ax_node_->Destroy();
30 }
31 
GetNativeObject()32 gfx::NativeViewAccessible NativeViewAccessibility::GetNativeObject() {
33   return ax_node_ ? ax_node_->GetNativeViewAccessible() : NULL;
34 }
35 
Destroy()36 void NativeViewAccessibility::Destroy() {
37   delete this;
38 }
39 
40 #if !defined(OS_WIN)
41 // static
RegisterWebView(View * web_view)42 void NativeViewAccessibility::RegisterWebView(View* web_view) {
43 }
44 
45 // static
UnregisterWebView(View * web_view)46 void NativeViewAccessibility::UnregisterWebView(View* web_view) {
47 }
48 #endif
49 
50 // ui::AXPlatformNodeDelegate
51 
GetData()52 ui::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 
GetChildCount()60 int NativeViewAccessibility::GetChildCount() {
61   return view_->child_count();
62 }
63 
ChildAtIndex(int index)64 gfx::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 
GetParent()70 gfx::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 
GetGlobalCoordinateOffset()82 gfx::Vector2d NativeViewAccessibility::GetGlobalCoordinateOffset() {
83   return gfx::Vector2d(0, 0);  // location is already in screen coordinates.
84 }
85 
NotifyAccessibilityEvent(ui::AXEvent event_type)86 void NativeViewAccessibility::NotifyAccessibilityEvent(ui::AXEvent event_type) {
87 }
88 
89 }  // namespace views
90