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// Copyright (c) 2012 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 UI_AURA_MONITOR_OBSERVER_H_
#define UI_AURA_MONITOR_OBSERVER_H_
#pragma once
#include "ui/aura/aura_export.h"
namespace gfx {
class Display;
}
namespace aura {
// Observers for display configuration changes.
class AURA_EXPORT DisplayObserver {
public:
// Called when the |display|'s bound has changed.
virtual void OnDisplayBoundsChanged(const gfx::Display& display) = 0;
// Called when |new_monitor| has been added.
virtual void OnDisplayAdded(const gfx::Display& new_display) = 0;
// Called when |old_display| has been removed.
virtual void OnDisplayRemoved(const gfx::Display& old_display) = 0;
protected:
virtual ~DisplayObserver();
};
} // namespace aura
#endif // UI_AURA_MONITOR_OBSERVER_H_
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