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1 // Copyright (c) 2017 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 #ifndef UI_ACCESSIBILITY_PLATFORM_AX_FAKE_CARET_WIN_H_ | |
6 #define UI_ACCESSIBILITY_PLATFORM_AX_FAKE_CARET_WIN_H_ | |
7 | |
8 #include <oleacc.h> | |
9 | |
10 #include "base/lazy_instance.h" | |
11 #include "base/macros.h" | |
12 #include "base/win/scoped_comptr.h" | |
13 #include "ui/accessibility/ax_export.h" | |
14 #include "ui/accessibility/ax_node_data.h" | |
15 #include "ui/accessibility/platform/ax_platform_node_delegate.h" | |
16 #include "ui/gfx/geometry/rect.h" | |
17 #include "ui/gfx/native_widget_types.h" | |
18 | |
19 namespace ui { | |
20 | |
21 class AXPlatformNodeWin; | |
22 | |
23 // A class representing the position of the caret to assistive software on | |
24 // Windows. This is required because Chrome doesn't use the standard system | |
25 // caret and because some assistive software still relies on specific | |
26 // accessibility APIs to retrieve the caret position. | |
27 class AX_EXPORT AXFakeCaretWin : private AXPlatformNodeDelegate { | |
28 public: | |
29 AXFakeCaretWin(); | |
30 virtual ~AXFakeCaretWin(); | |
31 | |
32 base::win::ScopedComPtr<IAccessible> GetCaret() const; | |
33 void SetBounds(gfx::Rect bounds); | |
34 | |
35 private: | |
36 // |AXPlatformNodeDelegate| members. | |
37 const AXNodeData& GetData() const override; | |
38 gfx::NativeWindow GetTopLevelWidget() override; | |
39 gfx::NativeViewAccessible GetParent() override; | |
40 int GetChildCount() override; | |
41 gfx::NativeViewAccessible ChildAtIndex(int index) override; | |
42 gfx::Rect GetScreenBoundsRect() const override; | |
43 gfx::NativeViewAccessible HitTestSync(int x, int y) override; | |
44 gfx::NativeViewAccessible GetFocus() override; | |
45 gfx::AcceleratedWidget GetTargetForNativeAccessibilityEvent() override; | |
46 bool AccessibilityPerformAction(const ui::AXActionData& data) override; | |
47 | |
48 AXPlatformNodeWin* caret_; | |
49 AXNodeData data_; | |
50 DISALLOW_COPY_AND_ASSIGN(AXFakeCaretWin); | |
51 }; | |
52 | |
53 AX_EXPORT base::LazyInstance<AXFakeCaretWin>::DestructorAtExit | |
54 g_ax_fake_caret_win = LAZY_INSTANCE_INITIALIZER; | |
dmazzoni
2017/04/17 05:07:35
Put this in the C++ file, and provide a method to
| |
55 | |
56 } // namespace ui | |
57 | |
58 #endif // UI_ACCESSIBILITY_PLATFORM_AX_FAKE_CARET_WIN_H_ | |
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