src/ash/system/logout_button/logout_button_tray.h

   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_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_TRAY_H_
   6 #define ASH_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_TRAY_H_
   7
   8 #include "ash/system/logout_button/logout_button_observer.h"
   9 #include "ash/system/tray/tray_background_view.h"
  10 #include "ash/system/user/login_status.h"
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "ui/views/controls/button/button.h"
  14
  15 namespace views {
  16 class LabelButton;
  17 }
  18
  19 namespace ash {
  20 namespace internal {
  21
  22 class StatusAreaWidget;
  23
  24 // Adds a logout button to the launcher's status area if enabled by the
  25 // kShowLogoutButtonInTray pref.
  26 class LogoutButtonTray : public TrayBackgroundView,
  27                          public LogoutButtonObserver,
  28                          public views::ButtonListener {
  29  public:
  30   explicit LogoutButtonTray(StatusAreaWidget* status_area_widget);
  31   virtual ~LogoutButtonTray();
  32
  33   // TrayBackgroundView:
  34   virtual void SetShelfAlignment(ShelfAlignment alignment) OVERRIDE;
  35   virtual base::string16 GetAccessibleNameForTray() OVERRIDE;
  36   virtual void HideBubbleWithView(
  37       const views::TrayBubbleView* bubble_view) OVERRIDE;
  38   virtual bool ClickedOutsideBubble() OVERRIDE;
  39
  40   // LogoutButtonObserver:
  41   virtual void OnShowLogoutButtonInTrayChanged(bool show) OVERRIDE;
  42
  43   // views::ButtonListener:
  44   virtual void ButtonPressed(views::Button* sender,
  45                              const ui::Event& event) OVERRIDE;
  46
  47   void UpdateAfterLoginStatusChange(user::LoginStatus login_status);
  48
  49  private:
  50   void UpdateVisibility();
  51
  52   views::LabelButton* button_;  // Not owned.
  53   user::LoginStatus login_status_;
  54   bool show_logout_button_in_tray_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(LogoutButtonTray);
  57 };
  58
  59 }  // namespace internal
  60 }  // namespace ash
  61
  62 #endif  // ASH_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_TRAY_H_