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      1 // Copyright (c) 2011 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_TABS_PINNED_TAB_SERVICE_H_
      6 #define CHROME_BROWSER_TABS_PINNED_TAB_SERVICE_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/profiles/profile_keyed_service.h"
     10 #include "content/common/notification_observer.h"
     11 #include "content/common/notification_registrar.h"
     12 
     13 class Profile;
     14 
     15 // PinnedTabService is responsible for updating preferences with the set of
     16 // pinned tabs to restore at startup. PinnedTabService listens for the
     17 // appropriate set of notifications to know it should update preferences.
     18 class PinnedTabService : public NotificationObserver,
     19                          public ProfileKeyedService {
     20  public:
     21   explicit PinnedTabService(Profile* profile);
     22 
     23  private:
     24   // Invoked when we're about to exit.
     25   void GotExit();
     26 
     27   // NotificationObserver.
     28   virtual void Observe(NotificationType type,
     29                        const NotificationSource& source,
     30                        const NotificationDetails& details);
     31 
     32   Profile* profile_;
     33 
     34   // If true we've seen an exit event (or the last browser is closing which
     35   // triggers an exit) and can ignore all other events.
     36   bool got_exiting_;
     37 
     38   // True if there is at least one normal browser for our profile.
     39   bool has_normal_browser_;
     40 
     41   NotificationRegistrar registrar_;
     42 
     43   DISALLOW_COPY_AND_ASSIGN(PinnedTabService);
     44 };
     45 
     46 #endif  // CHROME_BROWSER_TABS_PINNED_TAB_SERVICE_H_
     47