Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / ash / system / audio / tray_audio.h
1 // Copyright 2014 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_SYSTEM_AUDIO_TRAY_AUDIO_H_
6 #define ASH_SYSTEM_AUDIO_TRAY_AUDIO_H_
7
8 #include "ash/system/audio/audio_observer.h"
9 #include "ash/system/tray/tray_image_item.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "ui/gfx/display_observer.h"
12
13 namespace ash {
14
15 namespace system {
16 class TrayAudioDelegate;
17 }
18
19 namespace tray {
20 class VolumeView;
21 }
22
23 class TrayAudio : public TrayImageItem,
24                   public AudioObserver,
25                   public gfx::DisplayObserver {
26  public:
27   TrayAudio(SystemTray* system_tray,
28             scoped_ptr<system::TrayAudioDelegate> audio_delegate);
29   ~TrayAudio() override;
30
31   static bool ShowAudioDeviceMenu();
32
33  protected:
34   virtual void Update();
35
36   scoped_ptr<system::TrayAudioDelegate> audio_delegate_;
37   tray::VolumeView* volume_view_;
38
39   // True if VolumeView should be created for accelerator pop up;
40   // Otherwise, it should be created for detailed view in ash tray bubble.
41   bool pop_up_volume_view_;
42
43  private:
44   // Overridden from TrayImageItem.
45   bool GetInitialVisibility() override;
46
47   // Overridden from SystemTrayItem.
48   views::View* CreateDefaultView(user::LoginStatus status) override;
49   views::View* CreateDetailedView(user::LoginStatus status) override;
50   void DestroyDefaultView() override;
51   void DestroyDetailedView() override;
52   bool ShouldHideArrow() const override;
53   bool ShouldShowShelf() const override;
54
55   // Overridden from AudioObserver.
56   void OnOutputVolumeChanged() override;
57   void OnOutputMuteChanged() override;
58   void OnAudioNodesChanged() override;
59   void OnActiveOutputNodeChanged() override;
60   void OnActiveInputNodeChanged() override;
61
62   // Overridden from gfx::DisplayObserver.
63   void OnDisplayAdded(const gfx::Display& new_display) override;
64   void OnDisplayRemoved(const gfx::Display& old_display) override;
65   void OnDisplayMetricsChanged(const gfx::Display& display,
66                                uint32_t changed_metrics) override;
67
68   void ChangeInternalSpeakerChannelMode();
69
70   DISALLOW_COPY_AND_ASSIGN(TrayAudio);
71 };
72
73 }  // namespace ash
74
75 #endif  // ASH_SYSTEM_AUDIO_TRAY_AUDIO_H_