ash/wm/gestures/shelf_gesture_handler.h

   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_