ash/system/logout_button/tray_logout_button.h

   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_LOGOUT_BUTTON_TRAY_LOGOUT_BUTTON_H_
   6 #define ASH_SYSTEM_LOGOUT_BUTTON_TRAY_LOGOUT_BUTTON_H_
   7
   8 #include "ash/system/logout_button/logout_button_observer.h"
   9 #include "ash/system/tray/system_tray_item.h"
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12
  13 namespace ash {
  14 namespace internal {
  15
  16 namespace tray {
  17 class LogoutButton;
  18 }
  19
  20 // Adds a logout button to the system tray if enabled by the
  21 // kShowLogoutButtonInTray pref.
  22 class TrayLogoutButton : public SystemTrayItem, public LogoutButtonObserver {
  23  public:
  24   explicit TrayLogoutButton(SystemTray* system_tray);
  25   virtual ~TrayLogoutButton();
  26
  27   // Overridden from SystemTrayItem.
  28   virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
  29   virtual void DestroyTrayView() OVERRIDE;
  30   virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
  31
  32   // Overridden from LogoutButtonObserver.
  33   virtual void OnShowLogoutButtonInTrayChanged(bool show) OVERRIDE;
  34
  35  private:
  36   tray::LogoutButton* logout_button_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(TrayLogoutButton);
  39 };
  40
  41 }  // namespace internal
  42 }  // namespace ash
  43
  44 #endif  // ASH_SYSTEM_LOGOUT_BUTTON_TRAY_LOGOUT_BUTTON_H_