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- // Copyright 2020 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 ASH_PUBLIC_CPP_ACCESSIBILITY_EVENT_REWRITER_DELEGATE_H_
- #define ASH_PUBLIC_CPP_ACCESSIBILITY_EVENT_REWRITER_DELEGATE_H_
- #include <memory>
- #include "ash/public/cpp/ash_public_export.h"
- #include "ui/gfx/geometry/point_f.h"
- namespace ui {
- class Event;
- }
- namespace ash {
- enum class SwitchAccessCommand;
- enum class MagnifierCommand;
- // Allows a client to implement event processing for accessibility features;
- // used for ChromeVox and Switch Access.
- class ASH_PUBLIC_EXPORT AccessibilityEventRewriterDelegate {
- public:
- // Used to send key events to the ChromeVox extension. |capture| is true if
- // the rewriter discarded the event, false if the rewriter continues event
- // propagation.
- virtual void DispatchKeyEventToChromeVox(std::unique_ptr<ui::Event> event,
- bool capture) = 0;
- // Used to send mouse events to accessibility component extensions.
- virtual void DispatchMouseEvent(std::unique_ptr<ui::Event> event) = 0;
- // Sends a command to Switch Access.
- virtual void SendSwitchAccessCommand(SwitchAccessCommand command) = 0;
- // Sends a point to Switch Access's Point Scan.
- virtual void SendPointScanPoint(const gfx::PointF& point) = 0;
- // Sends a command to Magnifier.
- virtual void SendMagnifierCommand(MagnifierCommand command) = 0;
- protected:
- virtual ~AccessibilityEventRewriterDelegate() {}
- };
- } // namespace ash
- #endif // ASH_PUBLIC_CPP_ACCESSIBILITY_EVENT_REWRITER_DELEGATE_H_
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