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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_NOTIFICATIONS_FULLSCREEN_NOTIFICATION_BLOCKER_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_FULLSCREEN_NOTIFICATION_BLOCKER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "content/public/browser/notification_observer.h"
     10 #include "content/public/browser/notification_registrar.h"
     11 #include "ui/message_center/notification_blocker.h"
     12 
     13 // A notification blocker which checks the fullscreen state.
     14 class FullscreenNotificationBlocker
     15     : public message_center::NotificationBlocker,
     16       public content::NotificationObserver {
     17  public:
     18   explicit FullscreenNotificationBlocker(
     19       message_center::MessageCenter* message_center);
     20   virtual ~FullscreenNotificationBlocker();
     21 
     22   bool is_fullscreen_mode() const { return is_fullscreen_mode_; }
     23 
     24   // message_center::NotificationBlocker overrides:
     25   virtual void CheckState() OVERRIDE;
     26   virtual bool ShouldShowNotificationAsPopup(
     27       const message_center::NotifierId& notifier_id) const OVERRIDE;
     28 
     29  private:
     30   // content::NotificationObserver override.
     31   virtual void Observe(int type,
     32                        const content::NotificationSource& source,
     33                        const content::NotificationDetails& details) OVERRIDE;
     34 
     35   bool is_fullscreen_mode_;
     36 
     37   content::NotificationRegistrar registrar_;
     38 
     39   DISALLOW_COPY_AND_ASSIGN(FullscreenNotificationBlocker);
     40 };
     41 
     42 #endif  // CHROME_BROWSER_NOTIFICATIONS_FULLSCREEN_NOTIFICATION_BLOCKER_H_
     43