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      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_IME_TRAY_IME_H_
      6 #define ASH_SYSTEM_IME_TRAY_IME_H_
      7 
      8 #include "ash/system/ime/ime_observer.h"
      9 #include "ash/system/tray/system_tray_item.h"
     10 
     11 namespace views {
     12 class Label;
     13 }
     14 
     15 namespace ash {
     16 
     17 struct IMEInfo;
     18 
     19 namespace internal {
     20 
     21 namespace tray {
     22 class IMEDefaultView;
     23 class IMEDetailedView;
     24 class IMENotificationView;
     25 }
     26 
     27 class TrayItemView;
     28 
     29 class TrayIME : public SystemTrayItem,
     30                 public IMEObserver {
     31  public:
     32   explicit TrayIME(SystemTray* system_tray);
     33   virtual ~TrayIME();
     34 
     35  private:
     36   void UpdateTrayLabel(const IMEInfo& info, size_t count);
     37 
     38   // Update the content of the existing IME notification, or create a new one if
     39   // necessary. IME notification should be created only once in a session, i.e.
     40   // if an IME notification is created and removed already, it doesn't create a
     41   // new one.
     42   void UpdateOrCreateNotification();
     43 
     44   // Overridden from SystemTrayItem.
     45   virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
     46   virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
     47   virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
     48   virtual void DestroyTrayView() OVERRIDE;
     49   virtual void DestroyDefaultView() OVERRIDE;
     50   virtual void DestroyDetailedView() OVERRIDE;
     51   virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
     52   virtual void UpdateAfterShelfAlignmentChange(
     53       ShelfAlignment alignment) OVERRIDE;
     54 
     55   // Overridden from IMEObserver.
     56   virtual void OnIMERefresh(bool show_message) OVERRIDE;
     57 
     58   TrayItemView* tray_label_;
     59   tray::IMEDefaultView* default_;
     60   tray::IMEDetailedView* detailed_;
     61 
     62   bool message_shown_;
     63 
     64   DISALLOW_COPY_AND_ASSIGN(TrayIME);
     65 };
     66 
     67 }  // namespace internal
     68 }  // namespace ash
     69 
     70 #endif  // ASH_SYSTEM_IME_TRAY_IME_H_
     71