chrome/browser/sync/sessions/notification_service_sessions_router.h

   1 // Copyright 2014 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_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
   6 #define CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
   7
   8 #include <set>
   9
  10 #include "base/callback_list.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "chrome/browser/sync/sessions/sessions_sync_manager.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15
  16 class GURL;
  17 class Profile;
  18
  19 namespace content {
  20 class WebContents;
  21 }
  22
  23 namespace browser_sync {
  24
  25 // A SessionsSyncManager::LocalEventRouter that drives session sync via
  26 // the NotificationService.
  27 class NotificationServiceSessionsRouter
  28     : public LocalSessionEventRouter,
  29       public content::NotificationObserver {
  30  public:
  31   NotificationServiceSessionsRouter(
  32       Profile* profile,
  33       const syncer::SyncableService::StartSyncFlare& flare);
  34   ~NotificationServiceSessionsRouter() override;
  35
  36   // content::NotificationObserver implementation.
  37   // BrowserSessionProvider -> sync API model change application.
  38   void Observe(int type,
  39                const content::NotificationSource& source,
  40                const content::NotificationDetails& details) override;
  41
  42   // SessionsSyncManager::LocalEventRouter implementation.
  43   void StartRoutingTo(LocalSessionEventHandler* handler) override;
  44   void Stop() override;
  45
  46  private:
  47   // Called when the URL visited in |web_contents| was blocked by the
  48   // SupervisedUserService. We forward this on to our handler_ via the
  49   // normal OnLocalTabModified, but pass through here via a WeakPtr
  50   // callback from SupervisedUserService and to extract the tab delegate
  51   // from WebContents.
  52   void OnNavigationBlocked(content::WebContents* web_contents);
  53
  54   // Called when the favicons for the given page URLs
  55   // (e.g. http://www.google.com) and the given icon URL (e.g.
  56   // http://www.google.com/favicon.ico) have changed. It is valid to call
  57   // OnFaviconsChanged() with non-empty |page_urls| and an empty |icon_url|
  58   // and vice versa.
  59   void OnFaviconsChanged(const std::set<GURL>& page_urls,
  60                          const GURL& icon_url);
  61
  62   LocalSessionEventHandler* handler_;
  63   content::NotificationRegistrar registrar_;
  64   Profile* const profile_;
  65   syncer::SyncableService::StartSyncFlare flare_;
  66
  67   scoped_ptr<base::CallbackList<void(const std::set<GURL>&,
  68                                      const GURL&)>::Subscription>
  69       favicon_changed_subscription_;
  70
  71   base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(NotificationServiceSessionsRouter);
  74 };
  75
  76 }  // namespace browser_sync
  77
  78 #endif  // CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_