ash/system/session/logout_button_tray.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_SESSION_LOGOUT_BUTTON_TRAY_H_
   6 #define ASH_SYSTEM_SESSION_LOGOUT_BUTTON_TRAY_H_
   7
   8 #include "ash/ash_export.h"
   9 #include "ash/system/session/logout_button_observer.h"
  10 #include "ash/system/tray/tray_background_view.h"
  11 #include "ash/system/user/login_status.h"
  12 #include "base/basictypes.h"
  13 #include "base/compiler_specific.h"
  14 #include "base/time/time.h"
  15 #include "ui/views/controls/button/button.h"
  16
  17 namespace views {
  18 class LabelButton;
  19 }
  20
  21 namespace ash {
  22 namespace internal {
  23
  24 class StatusAreaWidget;
  25
  26 // Adds a logout button to the launcher's status area if enabled by the
  27 // kShowLogoutButtonInTray pref.
  28 class ASH_EXPORT LogoutButtonTray : public TrayBackgroundView,
  29                                     public LogoutButtonObserver,
  30                                     public views::ButtonListener {
  31  public:
  32   explicit LogoutButtonTray(StatusAreaWidget* status_area_widget);
  33   virtual ~LogoutButtonTray();
  34
  35   // TrayBackgroundView:
  36   virtual void SetShelfAlignment(ShelfAlignment alignment) OVERRIDE;
  37   virtual base::string16 GetAccessibleNameForTray() OVERRIDE;
  38   virtual void HideBubbleWithView(
  39       const views::TrayBubbleView* bubble_view) OVERRIDE;
  40   virtual bool ClickedOutsideBubble() OVERRIDE;
  41
  42   // LogoutButtonObserver:
  43   virtual void OnShowLogoutButtonInTrayChanged(bool show) OVERRIDE;
  44   virtual void OnLogoutDialogDurationChanged(base::TimeDelta duration) OVERRIDE;
  45
  46   // views::ButtonListener:
  47   virtual void ButtonPressed(views::Button* sender,
  48                              const ui::Event& event) OVERRIDE;
  49
  50   void UpdateAfterLoginStatusChange(user::LoginStatus login_status);
  51
  52  private:
  53   void UpdateVisibility();
  54
  55   views::LabelButton* button_;
  56   user::LoginStatus login_status_;
  57   bool show_logout_button_in_tray_;
  58   base::TimeDelta dialog_duration_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(LogoutButtonTray);
  61 };
  62
  63 }  // namespace internal
  64 }  // namespace ash
  65
  66 #endif  // ASH_SYSTEM_SESSION_LOGOUT_BUTTON_TRAY_H_