// Copyright 2013 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_WINDOW_STATE_OBSERVER_H_
#define ASH_WM_WINDOW_STATE_OBSERVER_H_

#include "ash/ash_export.h"
#include "ash/wm/wm_types.h"

namespace ash {
namespace wm {
class WindowState;

class ASH_EXPORT WindowStateObserver {
 public:
  // Called when the window's show type has changed. This is different from
  // kWindowShowStatekey property change as this will be invoked when the window
  // gets left/right maximized, and auto positioned. |old_type| is the value
  // before the change.
  virtual void OnWindowShowTypeChanged(WindowState* window_state,
                                       WindowShowType old_type) {}
};

}  // namespace wm
}  // namespace ash

#endif  // ASH_WM_WINDOW_STATE_OBSERVER_H_