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// 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_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
#define ASH_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
#include "ash/ash_export.h"
#include "ash/shelf/shelf_types.h"
namespace aura {
class RootWindow;
}
namespace ash {
class ASH_EXPORT ShelfLayoutManagerObserver {
public:
virtual ~ShelfLayoutManagerObserver() {}
// Called when the target ShelfLayoutManager will be deleted.
virtual void WillDeleteShelf() {}
// Called when the visibility change is scheduled.
virtual void WillChangeVisibilityState(ShelfVisibilityState new_state) {}
// Called when the auto hide state is changed.
virtual void OnAutoHideStateChanged(ShelfAutoHideState new_state) {}
// Called when the auto hide behavior is changed.
virtual void OnAutoHideBehaviorChanged(aura::RootWindow* root_window,
ShelfAutoHideBehavior new_behavior) {}
};
} // namespace ash
#endif // ASH_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
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