chromium/ui/wm/public/activation_change_observer.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_WM_PUBLIC_ACTIVATION_CHANGE_OBSERVER_H_
#define UI_WM_PUBLIC_ACTIVATION_CHANGE_OBSERVER_H_

#include "base/observer_list_types.h"
#include "ui/wm/public/wm_public_export.h"

namespace aura {
class Window;
}

namespace wm {

class WM_PUBLIC_EXPORT ActivationChangeObserver : public base::CheckedObserver { … };

// Gets/Sets the ActivationChangeObserver for a specific window. This observer
// is notified after the ActivationClient notifies all registered observers.
WM_PUBLIC_EXPORT void SetActivationChangeObserver(
    aura::Window* window,
    ActivationChangeObserver* observer);
WM_PUBLIC_EXPORT ActivationChangeObserver* GetActivationChangeObserver(
    aura::Window* window);

}  // namespace wm

#endif  // UI_WM_PUBLIC_ACTIVATION_CHANGE_OBSERVER_H_