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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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Chromium Code Reviews
Issue 2967373003:
Revert of Added a system caret used for accessibility on Windows. (Closed)
