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1 // Copyright 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 #include "ui/accessibility/platform/ax_system_caret_win.h" | |
6 | |
7 #include <windows.h> | |
8 | |
9 #include "base/logging.h" | |
10 #include "ui/accessibility/ax_enums.h" | |
11 #include "ui/accessibility/platform/ax_platform_node_win.h" | |
12 #include "ui/accessibility/platform/ax_platform_unique_id.h" | |
13 #include "ui/gfx/geometry/rect_conversions.h" | |
14 #include "ui/gfx/geometry/rect_f.h" | |
15 | |
16 namespace ui { | |
17 | |
18 AXSystemCaretWin::AXSystemCaretWin(gfx::AcceleratedWidget event_target) | |
19 : event_target_(event_target) { | |
20 caret_ = static_cast<AXPlatformNodeWin*>(AXPlatformNodeWin::Create(this)); | |
21 data_.id = GetNextAXPlatformNodeUniqueId(); | |
22 data_.role = AX_ROLE_CARET; | |
23 // |get_accState| should return 0 which means that the caret is visible. | |
24 data_.state = 0; | |
25 // According to MSDN, "Edit" should be the name of the caret object. | |
26 data_.SetName(L"Edit"); | |
27 data_.offset_container_id = -1; | |
28 } | |
29 | |
30 AXSystemCaretWin::~AXSystemCaretWin() { | |
31 caret_->Destroy(); | |
32 caret_ = nullptr; | |
33 } | |
34 | |
35 base::win::ScopedComPtr<IAccessible> AXSystemCaretWin::GetCaret() const { | |
36 base::win::ScopedComPtr<IAccessible> caret_accessible; | |
37 HRESULT hr = caret_->QueryInterface( | |
38 IID_IAccessible, | |
39 reinterpret_cast<void**>(caret_accessible.GetAddressOf())); | |
40 DCHECK(SUCCEEDED(hr)); | |
41 return caret_accessible; | |
42 } | |
43 | |
44 void AXSystemCaretWin::MoveCaretTo(const gfx::Rect& bounds) { | |
45 if (bounds.IsEmpty()) | |
46 return; | |
47 data_.location = gfx::RectF(bounds); | |
48 if (event_target_) { | |
49 ::NotifyWinEvent(EVENT_OBJECT_LOCATIONCHANGE, event_target_, OBJID_CARET, | |
50 -data_.id); | |
51 } | |
52 } | |
53 | |
54 const AXNodeData& AXSystemCaretWin::GetData() const { | |
55 return data_; | |
56 } | |
57 | |
58 const ui::AXTreeData& AXSystemCaretWin::GetTreeData() const { | |
59 CR_DEFINE_STATIC_LOCAL(ui::AXTreeData, empty_data, ()); | |
60 return empty_data; | |
61 } | |
62 | |
63 gfx::NativeWindow AXSystemCaretWin::GetTopLevelWidget() { | |
64 return nullptr; | |
65 } | |
66 | |
67 gfx::NativeViewAccessible AXSystemCaretWin::GetParent() { | |
68 if (!event_target_) | |
69 return nullptr; | |
70 | |
71 gfx::NativeViewAccessible parent; | |
72 HRESULT hr = | |
73 ::AccessibleObjectFromWindow(event_target_, OBJID_WINDOW, IID_IAccessible, | |
74 reinterpret_cast<void**>(&parent)); | |
75 if (SUCCEEDED(hr)) | |
76 return parent; | |
77 return nullptr; | |
78 } | |
79 | |
80 int AXSystemCaretWin::GetChildCount() { | |
81 return 0; | |
82 } | |
83 | |
84 gfx::NativeViewAccessible AXSystemCaretWin::ChildAtIndex(int index) { | |
85 return nullptr; | |
86 } | |
87 | |
88 gfx::Rect AXSystemCaretWin::GetScreenBoundsRect() const { | |
89 gfx::Rect bounds = ToEnclosingRect(data_.location); | |
90 return bounds; | |
91 } | |
92 | |
93 gfx::NativeViewAccessible AXSystemCaretWin::HitTestSync(int x, int y) { | |
94 return nullptr; | |
95 } | |
96 | |
97 gfx::NativeViewAccessible AXSystemCaretWin::GetFocus() { | |
98 return nullptr; | |
99 } | |
100 | |
101 gfx::AcceleratedWidget | |
102 AXSystemCaretWin::GetTargetForNativeAccessibilityEvent() { | |
103 return event_target_; | |
104 } | |
105 | |
106 bool AXSystemCaretWin::AccessibilityPerformAction( | |
107 const ui::AXActionData& data) { | |
108 return false; | |
109 } | |
110 | |
111 bool AXSystemCaretWin::ShouldIgnoreHoveredStateForTesting() { | |
112 return false; | |
113 } | |
114 | |
115 } // namespace ui | |
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