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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 CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_UI_MANAGER_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_UI_MANAGER_H_
      7 
      8 #include <set>
      9 #include <string>
     10 #include <vector>
     11 
     12 #include "base/basictypes.h"
     13 
     14 class GURL;
     15 class Notification;
     16 class PrefService;
     17 class Profile;
     18 
     19 // This virtual interface is used to manage the UI surfaces for desktop
     20 // notifications. There is one instance per profile.
     21 class NotificationUIManager {
     22  public:
     23   virtual ~NotificationUIManager() {}
     24 
     25   // Creates an initialized UI manager.
     26   static NotificationUIManager* Create(PrefService* local_state);
     27 
     28   // Adds a notification to be displayed. Virtual for unit test override.
     29   virtual void Add(const Notification& notification, Profile* profile) = 0;
     30 
     31   // Updates an existing notification. If |update_progress_only|, assume
     32   // only message and progress properties are updated.
     33   virtual bool Update(const Notification& notification, Profile* profile) = 0;
     34 
     35   // Returns the pointer to a notification if it match the supplied ID, either
     36   // currently displayed or in the queue.
     37   virtual const Notification* FindById(
     38       const std::string& notification_id) const = 0;
     39 
     40   // Removes any notifications matching the supplied ID, either currently
     41   // displayed or in the queue.  Returns true if anything was removed.
     42   virtual bool CancelById(const std::string& notification_id) = 0;
     43 
     44   // Adds the notification_id for each outstanding notification to the set
     45   // |notification_ids| (must not be NULL).
     46   virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
     47       Profile* profile,
     48       const GURL& source) = 0;
     49 
     50   // Removes notifications matching the |source_origin| (which could be an
     51   // extension ID). Returns true if anything was removed.
     52   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) = 0;
     53 
     54   // Removes notifications matching |profile|. Returns true if any were removed.
     55   virtual bool CancelAllByProfile(Profile* profile) = 0;
     56 
     57   // Cancels all pending notifications and closes anything currently showing.
     58   // Used when the app is terminating.
     59   virtual void CancelAll() = 0;
     60 
     61   // Temporary, while we have two implementations of Notifications UI Managers.
     62   // One is older BalloonCollection-based and uses renderers to show
     63   // notifications, another delegates to the new MessageCenter and uses native
     64   // UI widgets.
     65   // TODO(dimich): remove these eventually.
     66   static bool DelegatesToMessageCenter();
     67 
     68  protected:
     69   NotificationUIManager() {}
     70 
     71  private:
     72   DISALLOW_COPY_AND_ASSIGN(NotificationUIManager);
     73 };
     74 
     75 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_UI_MANAGER_H_
     76