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// Copyright 2015 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 COMPONENTS_MUS_PUBLIC_CPP_INPUT_EVENT_HANDLER_H_
#define COMPONENTS_MUS_PUBLIC_CPP_INPUT_EVENT_HANDLER_H_
#include "base/callback_forward.h"
#include "components/mus/public/interfaces/input_events.mojom.h"
namespace mus {
class Window;
// Responsible for processing input events for mus::Window.
class InputEventHandler {
public:
// The event handler can asynchronously ack the event by taking ownership of
// the |ack_callback|. If the handler does not take ownership of the callback,
// then WindowTreeClientImpl will ack the event.
virtual void OnWindowInputEvent(Window* target,
mojom::EventPtr event,
scoped_ptr<base::Closure>* ack_callback) = 0;
protected:
virtual ~InputEventHandler() {}
};
} // namespace mus
#endif // COMPONENTS_MUS_PUBLIC_CPP_INPUT_EVENT_HANDLER_H_
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