Re-factor Ash Message Center code part 2/4

ash/system/tray/system_tray_bubble.h

 // Copyright (c) 2012 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_SYSTEM_TRAY_SYSTEM_TRAY_BUBBLE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_BUBBLE_H_
 
 #include "ash/system/tray/tray_bubble_view.h"
 #include "ash/system/user/login_status.h"
 #include "base/base_export.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
-#include "ui/views/widget/widget_observer.h"
 
 #include <vector>
 
 namespace ash {
 
 class SystemTray;
 class SystemTrayItem;
 
 namespace internal {
 
-class SystemTrayBubble : public TrayBubbleView::Host,
-                         public views::WidgetObserver {
+class TrayBubbleWrapper;
+
+class SystemTrayBubble : public TrayBubbleView::Delegate {
  public:
   enum BubbleType {
     BUBBLE_TYPE_DEFAULT,
     BUBBLE_TYPE_DETAILED,
     BUBBLE_TYPE_NOTIFICATION
   };
 
   SystemTrayBubble(ash::SystemTray* tray,
                    const std::vector<ash::SystemTrayItem*>& items,
                    BubbleType bubble_type);
   virtual ~SystemTrayBubble();
 
   // Change the items displayed in the bubble.
   void UpdateView(const std::vector<ash::SystemTrayItem*>& items,
                   BubbleType bubble_type);
 
   // Creates |bubble_view_| and a child views for each member of |items_|.
-  // Also creates |bubble_widget_| and sets up animations.
+  // Also creates |bubble_wrapper_|. |init_params| may be modified.
   void InitView(views::View* anchor,
-                TrayBubbleView::InitParams init_params,
-                user::LoginStatus login_status);
+                user::LoginStatus login_status,
+                TrayBubbleView::InitParams* init_params);
 
-  // Overridden from TrayBubbleView::Host.
+  // Overridden from TrayBubbleView::Delegate.
   virtual void BubbleViewDestroyed() OVERRIDE;
   virtual void OnMouseEnteredView() OVERRIDE;
   virtual void OnMouseExitedView() OVERRIDE;
-  virtual void OnClickedOutsideView() OVERRIDE;
   virtual string16 GetAccessibleName() OVERRIDE;
+  virtual gfx::Rect GetAnchorRect(views::Widget* anchor_widget,
+                                  AnchorType anchor_type,
+                                  AnchorAlignment anchor_alignment) OVERRIDE;
 
   BubbleType bubble_type() const { return bubble_type_; }
   TrayBubbleView* bubble_view() const { return bubble_view_; }
 
   void DestroyItemViews();
   void StartAutoCloseTimer(int seconds);
   void StopAutoCloseTimer();
   void RestartAutoCloseTimer();
   void Close();
   void SetVisible(bool is_visible);
   bool IsVisible();
 
  private:
   void CreateItemViews(user::LoginStatus login_status);
 
-  // Overridden from views::WidgetObserver:
-  virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
-
   ash::SystemTray* tray_;
   TrayBubbleView* bubble_view_;
-  views::Widget* bubble_widget_;
+  scoped_ptr<TrayBubbleWrapper> bubble_wrapper_;
   std::vector<ash::SystemTrayItem*> items_;
   BubbleType bubble_type_;
 
   int autoclose_delay_;
   base::OneShotTimer<SystemTrayBubble> autoclose_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayBubble);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_BUBBLE_H_