[ash-md] Add on-screen keyboard toggle row in IME menu view.

ash/common/system/chromeos/ime_menu/ime_list_view.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_
 #define ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_
 
 #include "ash/common/system/tray/ime_info.h"
 #include "ash/common/system/tray/tray_details_view.h"
+#include "ui/views/controls/button/button.h"
 
 namespace ash {
+class MaterialKeyboardStatusRowView;
+
 // The detailed view for showing IME list.
 class ImeListView : public TrayDetailsView {
  public:
   enum SingleImeBehavior {
     // Shows the IME menu if there's only one IME in system.
     SHOW_SINGLE_IME,
     // Hides the IME menu if there's only one IME in system.
     HIDE_SINGLE_IME
   };
 
   ImeListView(SystemTrayItem* owner,
               bool show_keyboard_toggle,
               SingleImeBehavior single_ime_behavior);
 
   ~ImeListView() override;
 
   // Updates the view.
   virtual void Update(const IMEInfoList& list,
                       const IMEPropertyInfoList& property_list,
                       bool show_keyboard_toggle,
                       SingleImeBehavior single_ime_behavior);
 
   // TrayDetailsView:
   void HandleViewClicked(views::View* view) override;
 
+  // views::ButtonListener:
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
+
  private:
   // To allow the test class to access |ime_map_|.
   friend class ImeMenuTrayTest;
 
+  // Removes (and destroys) all child views.
+  void ResetImeListView();
+
   // Appends the IMEs to the scrollable area of the detailed view.
   void AppendIMEList(const IMEInfoList& list);
 
   // Appends the IME listed to the scrollable area of the detailed view.
   void AppendIMEProperties(const IMEPropertyInfoList& property_list);
 
   // Appends the IMEs and properties to the scrollable area  in the material
   // design IME menu.
   void AppendImeListAndProperties(const IMEInfoList& list,
                                   const IMEPropertyInfoList& property_list);
 
   // Appends the on-screen keyboard status to the last area of the detailed
   // view.
   void AppendKeyboardStatus();
 
+  // Appends the material on-screen keyboard status to the top area of the
+  // detailed view.
+  void AppendMaterialKeyboardStatus();
+
   std::map<views::View*, std::string> ime_map_;
   std::map<views::View*, std::string> property_map_;
+  // On-screen keyboard view which is not used in material design.
   views::View* keyboard_status_;
+  // On-screen keyboard view which is only used in material design.
+  MaterialKeyboardStatusRowView* material_keyboard_statuts_view_;
 
   DISALLOW_COPY_AND_ASSIGN(ImeListView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_