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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 ASH_WM_SYSTEM_GESTURE_EVENT_FILTER_H_
#define ASH_WM_SYSTEM_GESTURE_EVENT_FILTER_H_
#include "base/memory/scoped_ptr.h"
#include "ui/events/event_handler.h"
namespace ash {
class LongPressAffordanceHandler;
class OverviewGestureHandler;
class ShelfGestureHandler;
namespace test {
class SystemGestureEventFilterTest;
}
// An event filter which handles system level gesture events.
class SystemGestureEventFilter : public ui::EventHandler {
public:
SystemGestureEventFilter();
virtual ~SystemGestureEventFilter();
// Overridden from ui::EventHandler:
virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
private:
friend class ash::test::SystemGestureEventFilterTest;
scoped_ptr<LongPressAffordanceHandler> long_press_affordance_;
scoped_ptr<OverviewGestureHandler> overview_gesture_handler_;
scoped_ptr<ShelfGestureHandler> shelf_gesture_handler_;
DISALLOW_COPY_AND_ASSIGN(SystemGestureEventFilter);
};
} // namespace ash
#endif // ASH_WM_SYSTEM_GESTURE_EVENT_FILTER_H_
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