| // Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_PLATFORM_NODE_DELEGATE_H_ |
| #define FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_PLATFORM_NODE_DELEGATE_H_ |
| |
| #include "flutter/shell/platform/common/flutter_platform_node_delegate.h" |
| #include "flutter/shell/platform/windows/flutter_windows_engine.h" |
| #include "flutter/third_party/accessibility/ax/platform/ax_platform_node.h" |
| #include "flutter/third_party/accessibility/ax/platform/ax_unique_id.h" |
| |
| namespace flutter { |
| |
| class FlutterWindowsEngine; |
| |
| // The Win32 implementation of FlutterPlatformNodeDelegate. |
| // |
| // This class implements a wrapper around the Win32 accessibility objects that |
| // compose the accessibility tree. |
| class FlutterPlatformNodeDelegateWin32 : public FlutterPlatformNodeDelegate { |
| public: |
| explicit FlutterPlatformNodeDelegateWin32(FlutterWindowsEngine* engine); |
| virtual ~FlutterPlatformNodeDelegateWin32(); |
| |
| // |ui::AXPlatformNodeDelegate| |
| void Init(std::weak_ptr<OwnerBridge> bridge, ui::AXNode* node) override; |
| |
| // |ui::AXPlatformNodeDelegate| |
| gfx::NativeViewAccessible GetNativeViewAccessible() override; |
| |
| // |ui::AXPlatformNodeDelegate| |
| gfx::NativeViewAccessible HitTestSync( |
| int screen_physical_pixel_x, |
| int screen_physical_pixel_y) const override; |
| |
| // |FlutterPlatformNodeDelegate| |
| gfx::Rect GetBoundsRect( |
| const ui::AXCoordinateSystem coordinate_system, |
| const ui::AXClippingBehavior clipping_behavior, |
| ui::AXOffscreenResult* offscreen_result) const override; |
| |
| // Dispatches a Windows accessibility event of the specified type, generated |
| // by the accessibility node associated with this object. This is a |
| // convenience wrapper around |NotifyWinEvent|. |
| virtual void DispatchWinAccessibilityEvent(DWORD event_type); |
| |
| // Sets the accessibility focus to the accessibility node associated with |
| // this object. |
| void SetFocus(); |
| |
| private: |
| ui::AXPlatformNode* ax_platform_node_; |
| FlutterWindowsEngine* engine_; |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_PLATFORM_NODE_DELEGATE_H_ |