| // 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_SYSTEM_TRAY_TRACING_H_ |
| #define ASH_SYSTEM_TRAY_TRACING_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/system/tray/tray_image_item.h" |
| |
| namespace views { |
| class View; |
| } |
| |
| namespace ash { |
| |
| class ASH_EXPORT TracingObserver { |
| public: |
| virtual ~TracingObserver() {} |
| |
| // Notifies when tracing mode changes. |
| virtual void OnTracingModeChanged(bool value) = 0; |
| }; |
| |
| // This is the item that displays when users enable performance tracing at |
| // chrome://slow. It alerts them that this mode is running, and provides an |
| // easy way to open the page to disable it. |
| class TrayTracing : public TrayImageItem, |
| public TracingObserver { |
| public: |
| explicit TrayTracing(SystemTray* system_tray); |
| virtual ~TrayTracing(); |
| |
| private: |
| void SetTrayIconVisible(bool visible); |
| |
| // Overridden from TrayImageItem. |
| virtual bool GetInitialVisibility() OVERRIDE; |
| virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE; |
| virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE; |
| virtual void DestroyDefaultView() OVERRIDE; |
| virtual void DestroyDetailedView() OVERRIDE; |
| |
| // Overridden from TracingObserver. |
| virtual void OnTracingModeChanged(bool value) OVERRIDE; |
| |
| views::View* default_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TrayTracing); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_SYSTEM_TRAY_TRACING_H_ |