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