| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_ACCESSIBILITY_PLATFORM_AX_SYSTEM_CARET_WIN_H_ |
| #define UI_ACCESSIBILITY_PLATFORM_AX_SYSTEM_CARET_WIN_H_ |
| |
| #include <oleacc.h> |
| #include <wrl/client.h> |
| |
| #include "base/macros.h" |
| #include "ui/accessibility/ax_export.h" |
| #include "ui/accessibility/ax_node_data.h" |
| #include "ui/accessibility/ax_tree_data.h" |
| #include "ui/accessibility/platform/ax_platform_node_delegate_base.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/native_widget_types.h" |
| |
| namespace ui { |
| |
| class AXPlatformNodeWin; |
| |
| // A class representing the position of the caret to assistive software on |
| // Windows. This is required because Chrome doesn't use the standard system |
| // caret and because some assistive software still relies on specific |
| // accessibility APIs to retrieve the caret position. |
| class AX_EXPORT AXSystemCaretWin : private AXPlatformNodeDelegateBase { |
| public: |
| explicit AXSystemCaretWin(gfx::AcceleratedWidget event_target); |
| ~AXSystemCaretWin() override; |
| |
| Microsoft::WRL::ComPtr<IAccessible> GetCaret() const; |
| void MoveCaretTo(const gfx::Rect& bounds); |
| void Hide(); |
| |
| private: |
| // |AXPlatformNodeDelegate| members. |
| const AXNodeData& GetData() const override; |
| gfx::NativeViewAccessible GetParent() override; |
| gfx::Rect GetClippedScreenBoundsRect() const override; |
| gfx::Rect GetUnclippedScreenBoundsRect() const override; |
| gfx::AcceleratedWidget GetTargetForNativeAccessibilityEvent() override; |
| bool ShouldIgnoreHoveredStateForTesting() override; |
| const ui::AXUniqueId& GetUniqueId() const override; |
| |
| AXPlatformNodeWin* caret_; |
| gfx::AcceleratedWidget event_target_; |
| AXNodeData data_; |
| |
| friend class AXPlatformNodeWin; |
| DISALLOW_COPY_AND_ASSIGN(AXSystemCaretWin); |
| |
| private: |
| ui::AXUniqueId unique_id_; |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_ACCESSIBILITY_PLATFORM_AX_SYSTEM_CARET_WIN_H_ |