status_area_widget.h revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
1// Copyright (c) 2012 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_STATUS_AREA_WIDGET_H_
6#define ASH_SYSTEM_STATUS_AREA_WIDGET_H_
7
8#include "ash/ash_export.h"
9#include "ash/shelf/shelf_types.h"
10#include "ash/system/user/login_status.h"
11#include "ui/views/widget/widget.h"
12
13namespace ash {
14
15class OverviewButtonTray;
16class ShellDelegate;
17class SystemTray;
18class WebNotificationTray;
19
20namespace internal {
21
22class StatusAreaWidgetDelegate;
23#if defined(OS_CHROMEOS)
24class LogoutButtonTray;
25class VirtualKeyboardTray;
26#endif
27
28class ASH_EXPORT StatusAreaWidget : public views::Widget {
29 public:
30  static const char kNativeViewName[];
31
32  explicit StatusAreaWidget(aura::Window* status_container);
33  virtual ~StatusAreaWidget();
34
35  // Creates the SystemTray, WebNotificationTray and LogoutButtonTray.
36  void CreateTrayViews();
37
38  // Destroys the system tray and web notification tray. Called before
39  // tearing down the windows to avoid shutdown ordering issues.
40  void Shutdown();
41
42  // Update the alignment of the widget and tray views.
43  void SetShelfAlignment(ShelfAlignment alignment);
44
45  // Set the visibility of system notifications.
46  void SetHideSystemNotifications(bool hide);
47
48  // Called by the client when the login status changes. Caches login_status
49  // and calls UpdateAfterLoginStatusChange for the system tray and the web
50  // notification tray.
51  void UpdateAfterLoginStatusChange(user::LoginStatus login_status);
52
53  internal::StatusAreaWidgetDelegate* status_area_widget_delegate() {
54    return status_area_widget_delegate_;
55  }
56  SystemTray* system_tray() { return system_tray_; }
57  WebNotificationTray* web_notification_tray() {
58    return web_notification_tray_;
59  }
60  OverviewButtonTray* overview_button_tray() {
61    return overview_button_tray_;
62  }
63
64  user::LoginStatus login_status() const { return login_status_; }
65
66  // Returns true if the shelf should be visible. This is used when the
67  // shelf is configured to auto-hide and test if the shelf should force
68  // the shelf to remain visible.
69  bool ShouldShowShelf() const;
70
71  // True if any message bubble is shown.
72  bool IsMessageBubbleShown() const;
73
74  // Overridden from views::Widget:
75  virtual void OnNativeWidgetActivationChanged(bool active) OVERRIDE;
76
77 private:
78  void AddSystemTray();
79  void AddWebNotificationTray();
80#if defined(OS_CHROMEOS)
81  void AddLogoutButtonTray();
82  void AddVirtualKeyboardTray();
83#endif
84  void AddOverviewButtonTray();
85
86  // Weak pointers to View classes that are parented to StatusAreaWidget:
87  internal::StatusAreaWidgetDelegate* status_area_widget_delegate_;
88  OverviewButtonTray* overview_button_tray_;
89  SystemTray* system_tray_;
90  WebNotificationTray* web_notification_tray_;
91#if defined(OS_CHROMEOS)
92  LogoutButtonTray* logout_button_tray_;
93  VirtualKeyboardTray* virtual_keyboard_tray_;
94#endif
95  user::LoginStatus login_status_;
96
97  DISALLOW_COPY_AND_ASSIGN(StatusAreaWidget);
98};
99
100}  // namespace internal
101}  // namespace ash
102
103#endif  // ASH_SYSTEM_STATUS_AREA_WIDGET_H_
104