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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_TRAY_TRACING_H_ | |
6 #define ASH_COMMON_SYSTEM_CHROMEOS_TRAY_TRACING_H_ | |
7 | |
8 #include "ash/ash_export.h" | |
9 #include "ash/common/system/tray/tray_image_item.h" | |
10 #include "base/macros.h" | |
11 | |
12 namespace views { | |
13 class View; | |
14 } | |
15 | |
16 namespace ash { | |
17 | |
18 class ASH_EXPORT TracingObserver { | |
19 public: | |
20 virtual ~TracingObserver() {} | |
21 | |
22 // Notifies when tracing mode changes. | |
23 virtual void OnTracingModeChanged(bool value) = 0; | |
24 }; | |
25 | |
26 // This is the item that displays when users enable performance tracing at | |
27 // chrome://slow. It alerts them that this mode is running, and provides an | |
28 // easy way to open the page to disable it. | |
29 class TrayTracing : public TrayImageItem, public TracingObserver { | |
30 public: | |
31 explicit TrayTracing(SystemTray* system_tray); | |
32 ~TrayTracing() override; | |
33 | |
34 private: | |
35 void SetTrayIconVisible(bool visible); | |
36 | |
37 // Overridden from TrayImageItem. | |
38 bool GetInitialVisibility() override; | |
39 views::View* CreateDefaultView(LoginStatus status) override; | |
40 views::View* CreateDetailedView(LoginStatus status) override; | |
41 void DestroyDefaultView() override; | |
42 void DestroyDetailedView() override; | |
43 | |
44 // Overridden from TracingObserver. | |
45 void OnTracingModeChanged(bool value) override; | |
46 | |
47 views::View* default_; | |
48 | |
49 DISALLOW_COPY_AND_ASSIGN(TrayTracing); | |
50 }; | |
51 | |
52 } // namespace ash | |
53 | |
54 #endif // ASH_COMMON_SYSTEM_CHROMEOS_TRAY_TRACING_H_ | |
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