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// Copyright (c) 2012 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_AURA_CLIENT_EVENT_CLIENT_H_
#define UI_AURA_CLIENT_EVENT_CLIENT_H_
#pragma once
#include "ui/aura/aura_export.h"
#include "ui/aura/window.h"
namespace aura {
class Event;
class RootWindow;
namespace client {
// An interface implemented by an object that alters event processing.
class AURA_EXPORT EventClient {
public:
// Returns true if events can be processed by |window| or any of its children.
virtual bool CanProcessEventsWithinSubtree(const Window* window) const = 0;
protected:
virtual ~EventClient() {}
};
// Sets/Gets the event client on the RootWindow.
AURA_EXPORT void SetEventClient(RootWindow* root_window, EventClient* client);
AURA_EXPORT EventClient* GetEventClient(const RootWindow* root_window);
} // namespace clients
} // namespace aura
#endif // UI_AURA_CLIENT_EVENT_CLIENT_H_
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