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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef ASH_WM_GESTURES_SHELF_GESTURE_HANDLER_H_
      6 #define ASH_WM_GESTURES_SHELF_GESTURE_HANDLER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/scoped_ptr.h"
     10 
     11 namespace ui {
     12 class GestureEvent;
     13 }
     14 
     15 namespace ash {
     16 class TrayGestureHandler;
     17 
     18 // This manages gestures on the shelf (e.g. launcher, status tray) that affects
     19 // the shelf visibility.
     20 class ShelfGestureHandler {
     21  public:
     22   ShelfGestureHandler();
     23   virtual ~ShelfGestureHandler();
     24 
     25   // Processes a gesture event and updates the status of the shelf when
     26   // appropriate. Returns true of the gesture has been handled and it should not
     27   // be processed any farther, false otherwise.
     28   bool ProcessGestureEvent(const ui::GestureEvent& event);
     29 
     30  private:
     31   bool drag_in_progress_;
     32 
     33   scoped_ptr<TrayGestureHandler> tray_handler_;
     34 
     35   DISALLOW_COPY_AND_ASSIGN(ShelfGestureHandler);
     36 };
     37 
     38 }  // namespace ash
     39 
     40 #endif  // ASH_WM_GESTURES_SHELF_GESTURE_HANDLER_H_
     41