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      1 // Copyright (c) 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_NOTIFICATIONS_MESSAGE_CENTER_SETTINGS_CONTROLLER_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_MESSAGE_CENTER_SETTINGS_CONTROLLER_H_
      7 
      8 #include <map>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/memory/scoped_vector.h"
     14 #include "base/memory/weak_ptr.h"
     15 #include "base/observer_list.h"
     16 #include "chrome/browser/extensions/app_icon_loader.h"
     17 #include "chrome/common/content_settings.h"
     18 #include "components/favicon_base/favicon_types.h"
     19 #include "content/public/browser/notification_details.h"
     20 #include "content/public/browser/notification_observer.h"
     21 #include "content/public/browser/notification_registrar.h"
     22 #include "content/public/browser/notification_source.h"
     23 #include "ui/message_center/notifier_settings.h"
     24 
     25 #if defined(OS_CHROMEOS)
     26 #include "chrome/browser/chromeos/login/users/user_manager.h"
     27 #endif
     28 
     29 class Profile;
     30 class ProfileInfoCache;
     31 
     32 namespace base {
     33 class CancelableTaskTracker;
     34 }
     35 
     36 namespace favicon_base {
     37 struct FaviconImageResult;
     38 }
     39 
     40 namespace message_center {
     41 class ProfileNotifierGroup;
     42 }
     43 
     44 // The class to bridge between the settings UI of notifiers and the preference
     45 // storage.
     46 class MessageCenterSettingsController
     47     : public message_center::NotifierSettingsProvider,
     48       public content::NotificationObserver,
     49 #if defined(OS_CHROMEOS)
     50       public chromeos::UserManager::UserSessionStateObserver,
     51 #endif
     52       public extensions::AppIconLoader::Delegate {
     53  public:
     54   explicit MessageCenterSettingsController(
     55       ProfileInfoCache* profile_info_cache);
     56   virtual ~MessageCenterSettingsController();
     57 
     58   // Overridden from message_center::NotifierSettingsProvider.
     59   virtual void AddObserver(
     60       message_center::NotifierSettingsObserver* observer) OVERRIDE;
     61   virtual void RemoveObserver(
     62       message_center::NotifierSettingsObserver* observer) OVERRIDE;
     63   virtual size_t GetNotifierGroupCount() const OVERRIDE;
     64   virtual const message_center::NotifierGroup& GetNotifierGroupAt(
     65       size_t index) const OVERRIDE;
     66   virtual bool IsNotifierGroupActiveAt(size_t index) const OVERRIDE;
     67   virtual void SwitchToNotifierGroup(size_t index) OVERRIDE;
     68   virtual const message_center::NotifierGroup& GetActiveNotifierGroup() const
     69       OVERRIDE;
     70   virtual void GetNotifierList(
     71       std::vector<message_center::Notifier*>* notifiers) OVERRIDE;
     72   virtual void SetNotifierEnabled(const message_center::Notifier& notifier,
     73                                   bool enabled) OVERRIDE;
     74   virtual void OnNotifierSettingsClosing() OVERRIDE;
     75   virtual bool NotifierHasAdvancedSettings(
     76       const message_center::NotifierId& notifier_id) const OVERRIDE;
     77   virtual void OnNotifierAdvancedSettingsRequested(
     78       const message_center::NotifierId& notifier_id,
     79       const std::string* notification_id) OVERRIDE;
     80 
     81 #if defined(OS_CHROMEOS)
     82   // Overridden from chromeos::UserManager::UserSessionStateObserver.
     83   virtual void ActiveUserChanged(const chromeos::User* active_user) OVERRIDE;
     84 #endif
     85 
     86   // Overridden from extensions::AppIconLoader::Delegate.
     87   virtual void SetAppImage(const std::string& id,
     88                            const gfx::ImageSkia& image) OVERRIDE;
     89 
     90  private:
     91   // Overridden from content::NotificationObserver.
     92   virtual void Observe(int type,
     93                        const content::NotificationSource& source,
     94                        const content::NotificationDetails& details) OVERRIDE;
     95 
     96   void OnFaviconLoaded(const GURL& url,
     97                        const favicon_base::FaviconImageResult& favicon_result);
     98 
     99 #if defined(OS_CHROMEOS)
    100   // Sets up the notifier group for the guest session. This needs to be
    101   // separated from RebuildNotifierGroup() and called asynchronously to avoid
    102   // the infinite loop of creating profile. See more the comment of
    103   // RebuildNotifierGroups().
    104   void CreateNotifierGroupForGuestLogin();
    105 #endif
    106 
    107   void RebuildNotifierGroups();
    108 
    109   // The views displaying notifier settings.
    110   ObserverList<message_center::NotifierSettingsObserver> observers_;
    111 
    112   // The task tracker for loading favicons.
    113   scoped_ptr<base::CancelableTaskTracker> favicon_tracker_;
    114 
    115   scoped_ptr<extensions::AppIconLoader> app_icon_loader_;
    116 
    117   std::map<base::string16, ContentSettingsPattern> patterns_;
    118 
    119   // The list of all configurable notifier groups. This is each profile that is
    120   // loaded (and in the ProfileInfoCache - so no incognito profiles go here).
    121   ScopedVector<message_center::ProfileNotifierGroup> notifier_groups_;
    122   size_t current_notifier_group_;
    123 
    124   content::NotificationRegistrar registrar_;
    125 
    126   ProfileInfoCache* profile_info_cache_;
    127 
    128   base::WeakPtrFactory<MessageCenterSettingsController> weak_factory_;
    129 
    130   DISALLOW_COPY_AND_ASSIGN(MessageCenterSettingsController);
    131 };
    132 
    133 #endif  // CHROME_BROWSER_NOTIFICATIONS_MESSAGE_CENTER_SETTINGS_CONTROLLER_H_
    134