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- // Copyright 2017 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_PUBLIC_CPP_SYSTEM_TRAY_OBSERVER_H_
- #define ASH_PUBLIC_CPP_SYSTEM_TRAY_OBSERVER_H_
- #include "ash/public/cpp/ash_public_export.h"
- namespace ash {
- // A class that observes system tray related focus events.
- class ASH_PUBLIC_EXPORT SystemTrayObserver {
- public:
- // Called when focus is about to leave system tray.
- virtual void OnFocusLeavingSystemTray(bool reverse) = 0;
- // Called when the UnifiedSystemTrayBubble is shown.
- virtual void OnSystemTrayBubbleShown() {}
- protected:
- virtual ~SystemTrayObserver() = default;
- };
- } // namespace ash
- #endif // ASH_PUBLIC_CPP_SYSTEM_TRAY_OBSERVER_H_
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