Implement message center on Windows

ash/system/web_notification/web_notification_tray.h

Index: ash/system/web_notification/web_notification_tray.h
diff --git a/ash/system/web_notification/web_notification_tray.h b/ash/system/web_notification/web_notification_tray.h
index bd9e026af42db40d4f0ee85a98afbf0ecfd4d8ee..585f45761357e916d1aa9b3d488b6caec0892fe4 100644
--- a/ash/system/web_notification/web_notification_tray.h
+++ b/ash/system/web_notification/web_notification_tray.h
@@ -7,10 +7,12 @@
 
 #include "ash/ash_export.h"
 #include "ash/system/tray/tray_background_view.h"
-#include "ash/system/tray/tray_views.h"
 #include "ash/system/user/login_status.h"
 #include "base/gtest_prod_util.h"
-#include "ui/message_center/message_center.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/message_center/message_center_tray.h"
+#include "ui/message_center/message_center_tray_delegate.h"
+#include "ui/views/bubble/tray_bubble_view.h"
 #include "ui/views/widget/widget_observer.h"
 
 // Status area tray for showing browser and app notifications. This hosts
@@ -21,24 +23,11 @@
 // generated by SystemTrayItem). Visibility of one notification type or other
 // is controlled by StatusAreaWidget.
 
-namespace aura {
-class LocatedEvent;
-}
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace views {
-class ImageButton;
-class TrayBubbleView;
-class Widget;
-}
-
 namespace message_center {
+class MessageBubbleBase;
+class MessageCenter;
 class MessageCenterBubble;
 class MessagePopupBubble;
-class QuietModeBubble;
 }
 
 namespace ash {
@@ -51,11 +40,12 @@ class WebNotificationBubbleWrapper;
 class ASH_EXPORT WebNotificationTray
     : public internal::TrayBackgroundView,
       public views::TrayBubbleView::Delegate,
-      public message_center::MessageCenter::Observer,
+      public message_center::MessageCenterTrayDelegate,
       public views::ButtonListener,
       public views::WidgetObserver {
  public:
-  explicit WebNotificationTray(internal::StatusAreaWidget* status_area_widget);
+  explicit WebNotificationTray(
+      internal::StatusAreaWidget* status_area_widget);
   virtual ~WebNotificationTray();
 
   // Set whether or not the popup notifications should be hidden.
@@ -73,10 +63,6 @@ class ASH_EXPORT WebNotificationTray
   // Returns true if the mouse is inside the notification bubble.
   bool IsMouseInNotificationBubble() const;
 
-  message_center::MessageCenter* message_center() {
-    return message_center_;
-  }
-
   // Overridden from TrayBackgroundView.
   virtual void SetShelfAlignment(ShelfAlignment alignment) OVERRIDE;
   virtual void AnchorUpdated() OVERRIDE;
@@ -98,9 +84,6 @@ class ASH_EXPORT WebNotificationTray
                                   AnchorAlignment anchor_alignment) OVERRIDE;
   virtual void HideBubble(const views::TrayBubbleView* bubble_view) OVERRIDE;
 
-  // Overridden from message_center::MessageCenter::Observer.
-  virtual void OnMessageCenterChanged(bool new_notification) OVERRIDE;
-
   // Overridden from ButtonListener.
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
@@ -108,6 +91,17 @@ class ASH_EXPORT WebNotificationTray
   // Overridden from WidgetObserver.
   virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
 
+  // Overridden from MessageCenterTrayDelegate.
+  virtual void OnMessageCenterTrayChanged() OVERRIDE;
+  virtual bool ShowMessageCenter() OVERRIDE;
+  virtual void UpdateMessageCenter() OVERRIDE;
+  virtual void HideMessageCenter() OVERRIDE;
+  virtual bool ShowPopups() OVERRIDE;
+  virtual void UpdatePopups() OVERRIDE;
+  virtual void HidePopups() OVERRIDE;
+
+  message_center::MessageCenter* message_center();
+
  private:
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotifications);
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotificationPopupBubble);
@@ -115,29 +109,16 @@ class ASH_EXPORT WebNotificationTray
                            ManyMessageCenterNotifications);
   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, ManyPopupNotifications);
 
-  // Shows or hides the message center bubble.
-  void ToggleMessageCenterBubble();
-
-  // Shows or updates the message center bubble and hides the popup bubble.
-  void ShowMessageCenterBubble();
+  // Queries login status and the status area widget to determine visibility of
+  // the message center.
+  bool ShouldShowMessageCenter();
 
-  // Hides the message center bubble if visible.
-  void HideMessageCenterBubble();
-
-  // Shows or updates the popup notification bubble if appropriate.
-  void ShowPopupBubble();
-
-  // Hides the notification bubble if visible.
-  void HidePopupBubble();
-
-  // Returns true if it should show the quiet mode bubble.
+ // Returns true if it should show the quiet mode bubble.
   bool ShouldShowQuietModeBubble(const ui::Event& event);
 
   // Shows the quiet mode bubble.
   void ShowQuietModeBubble();
 
-  // Updates the tray icon and visibility.
-  void UpdateTray();
 
   internal::WebNotificationBubbleWrapper* message_center_bubble() const {
     return message_center_bubble_.get();
@@ -152,14 +133,16 @@ class ASH_EXPORT WebNotificationTray
   }
 
   // Testing accessors.
+  bool IsPopupVisible() const;
   message_center::MessageCenterBubble* GetMessageCenterBubbleForTest();
   message_center::MessagePopupBubble* GetPopupBubbleForTest();
 
-  message_center::MessageCenter* message_center_; // Weak, owned by ash::Shell
+  scoped_ptr<message_center::MessageCenterTray> message_center_tray_;
   scoped_ptr<internal::WebNotificationBubbleWrapper> message_center_bubble_;
   scoped_ptr<internal::WebNotificationBubbleWrapper> popup_bubble_;
   scoped_ptr<message_center::QuietModeBubble> quiet_mode_bubble_;
   views::ImageButton* button_;
+
   bool show_message_center_on_unlock_;
 
   DISALLOW_COPY_AND_ASSIGN(WebNotificationTray);