status_area_widget.h revision a36e5920737c6adbddd3e43b760e5de8431db6e0 
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 ShellDelegate;
16class SystemTray;
17class WebNotificationTray;
18
19namespace internal {
20
21class StatusAreaWidgetDelegate;
22
23class ASH_EXPORT StatusAreaWidget : public views::Widget {
24 public:
25  static const char kNativeViewName[];
26
27  explicit StatusAreaWidget(aura::Window* status_container);
28  virtual ~StatusAreaWidget();
29
30  // Creates the SystemTray and the WebNotificationTray.
31  void CreateTrayViews();
32
33  // Destroys the system tray and web notification tray. Called before
34  // tearing down the windows to avoid shutdown ordering issues.
35  void Shutdown();
36
37  // Update the alignment of the widget and tray views.
38  void SetShelfAlignment(ShelfAlignment alignment);
39
40  // Set the visibility of system notifications.
41  void SetHideSystemNotifications(bool hide);
42
43  // Returns true if it is OK to show a non system notification.
44  bool ShouldShowWebNotifications();
45
46  // Called by the client when the login status changes. Caches login_status
47  // and calls UpdateAfterLoginStatusChange for the system tray and the web
48  // notification tray.
49  void UpdateAfterLoginStatusChange(user::LoginStatus login_status);
50
51  internal::StatusAreaWidgetDelegate* status_area_widget_delegate() {
52    return status_area_widget_delegate_;
53  }
54  SystemTray* system_tray() { return system_tray_; }
55  WebNotificationTray* web_notification_tray() {
56    return web_notification_tray_;
57  }
58
59  user::LoginStatus login_status() const { return login_status_; }
60
61  // Returns true if the launcher should be visible. This is used when the
62  // launcher is configured to auto-hide and test if the shelf should force
63  // the launcher to remain visible.
64  bool ShouldShowLauncher() const;
65
66  // True if any message bubble is shown.
67  bool IsMessageBubbleShown() const;
68
69  // Overridden from views::Widget:
70  virtual void OnNativeWidgetActivationChanged(bool active) OVERRIDE;
71
72 private:
73  void AddSystemTray();
74  void AddWebNotificationTray();
75
76  // Weak pointers to View classes that are parented to StatusAreaWidget:
77  internal::StatusAreaWidgetDelegate* status_area_widget_delegate_;
78  SystemTray* system_tray_;
79  WebNotificationTray* web_notification_tray_;
80  user::LoginStatus login_status_;
81
82  DISALLOW_COPY_AND_ASSIGN(StatusAreaWidget);
83};
84
85}  // namespace internal
86}  // namespace ash
87
88#endif  // ASH_SYSTEM_STATUS_AREA_WIDGET_H_
89