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      1 // Copyright 2013 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 CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_WEB_NOTIFICATION_TRAY_H_
      6 #define CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_WEB_NOTIFICATION_TRAY_H_
      7 
      8 #include "base/memory/weak_ptr.h"
      9 #include "base/prefs/pref_member.h"
     10 #include "chrome/browser/status_icons/status_icon_menu_model.h"
     11 #include "chrome/browser/status_icons/status_icon_observer.h"
     12 #include "chrome/browser/ui/views/message_center/message_center_widget_delegate.h"
     13 #include "content/public/browser/notification_observer.h"
     14 #include "content/public/browser/notification_registrar.h"
     15 #include "ui/base/models/simple_menu_model.h"
     16 #include "ui/gfx/rect.h"
     17 #include "ui/message_center/message_center_tray.h"
     18 #include "ui/message_center/message_center_tray_delegate.h"
     19 #include "ui/views/widget/widget_observer.h"
     20 
     21 #if defined(OS_WIN)
     22 #include "base/threading/thread.h"
     23 #endif
     24 
     25 class PrefService;
     26 class StatusIcon;
     27 
     28 namespace message_center {
     29 class MessageCenter;
     30 class MessagePopupCollection;
     31 }
     32 
     33 namespace views {
     34 class Widget;
     35 }
     36 
     37 namespace message_center {
     38 
     39 struct PositionInfo;
     40 
     41 class MessageCenterWidgetDelegate;
     42 
     43 // A MessageCenterTrayDelegate implementation that exposes the MessageCenterTray
     44 // via a system tray icon.  The notification popups will be displayed in the
     45 // corner of the screen and the message center will be displayed by the system
     46 // tray icon on click.
     47 class WebNotificationTray : public message_center::MessageCenterTrayDelegate,
     48                             public StatusIconObserver,
     49                             public base::SupportsWeakPtr<WebNotificationTray>,
     50                             public StatusIconMenuModel::Delegate {
     51  public:
     52   explicit WebNotificationTray(PrefService* local_state);
     53   virtual ~WebNotificationTray();
     54 
     55   message_center::MessageCenter* message_center();
     56 
     57   // MessageCenterTrayDelegate implementation.
     58   virtual bool ShowPopups() OVERRIDE;
     59   virtual void HidePopups() OVERRIDE;
     60   virtual bool ShowMessageCenter() OVERRIDE;
     61   virtual void HideMessageCenter() OVERRIDE;
     62   virtual void OnMessageCenterTrayChanged() OVERRIDE;
     63   virtual bool ShowNotifierSettings() OVERRIDE;
     64   virtual bool IsContextMenuEnabled() const OVERRIDE;
     65 
     66   // StatusIconObserver implementation.
     67   virtual void OnStatusIconClicked() OVERRIDE;
     68 #if defined(OS_WIN)
     69   virtual void OnBalloonClicked() OVERRIDE;
     70 
     71   // This shows a platform-specific balloon informing the user of the existence
     72   // of the message center in the status tray area.
     73   void DisplayFirstRunBalloon();
     74 
     75   void EnforceStatusIconVisible();
     76 #endif
     77 
     78   // StatusIconMenuModel::Delegate implementation.
     79   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
     80 
     81   // Changes the icon and hovertext based on number of unread notifications.
     82   void UpdateStatusIcon();
     83   void SendHideMessageCenter();
     84   void MarkMessageCenterHidden();
     85 
     86   // Gets the point where the status icon was clicked.
     87   gfx::Point mouse_click_point() { return mouse_click_point_; }
     88   virtual MessageCenterTray* GetMessageCenterTray() OVERRIDE;
     89 
     90  private:
     91   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotifications);
     92   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, WebNotificationPopupBubble);
     93   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest,
     94                            ManyMessageCenterNotifications);
     95   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, ManyPopupNotifications);
     96   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, ManuallyCloseMessageCenter);
     97   FRIEND_TEST_ALL_PREFIXES(WebNotificationTrayTest, StatusIconBehavior);
     98 
     99   PositionInfo GetPositionInfo();
    100 
    101   void CreateStatusIcon(const gfx::ImageSkia& image,
    102                         const base::string16& tool_tip);
    103   void DestroyStatusIcon();
    104   void AddQuietModeMenu(StatusIcon* status_icon);
    105   MessageCenterWidgetDelegate* GetMessageCenterWidgetDelegateForTest();
    106 
    107 #if defined(OS_WIN)
    108   // This member variable keeps track of whether EnforceStatusIconVisible has
    109   // been invoked on this machine, so the user still has control after we try
    110   // promoting it the first time.
    111   scoped_ptr<BooleanPrefMember> did_force_tray_visible_;
    112 #endif
    113 
    114   MessageCenterWidgetDelegate* message_center_delegate_;
    115   scoped_ptr<message_center::MessagePopupCollection> popup_collection_;
    116 
    117   StatusIcon* status_icon_;
    118   StatusIconMenuModel* status_icon_menu_;
    119   scoped_ptr<MessageCenterTray> message_center_tray_;
    120   gfx::Point mouse_click_point_;
    121 
    122   bool should_update_tray_content_;
    123   bool last_quiet_mode_state_;
    124   base::string16 title_;
    125 
    126   DISALLOW_COPY_AND_ASSIGN(WebNotificationTray);
    127 };
    128 
    129 }  // namespace message_center
    130 
    131 #endif  // CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_WEB_NOTIFICATION_TRAY_H_
    132