File indexing completed on 2024-05-19 04:49:29

 /****************************************************************************************
  * Copyright (c) 2007 Maximilian Kossick <maximilian.kossick@googlemail.com>            *
  * Copyright (c) 2008 Mark Kretschmann <kretschmann@kde.org>                            *
  * Copyright (c) 2013 Matěj Laitl <matej@laitl.cz>                                      *
  *                                                                                      *
  * This program is free software; you can redistribute it and/or modify it under        *
  * the terms of the GNU General Public License as published by the Free Software        *
  * Foundation; either version 2 of the License, or (at your option) any later           *
  * version.                                                                             *
  *                                                                                      *
  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
  *                                                                                      *
  * You should have received a copy of the GNU General Public License along with         *
  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
  ***************************************************************************************/
 
 #include "Observer.h"
 
 #include "core/meta/Base.h"
 
 using namespace Meta;
 
 Observer::~Observer()
 {
     // Unsubscribe all stray Meta subscriptions:
     foreach( Base *ptr, m_subscriptions )
     {
         if( ptr )
             ptr->unsubscribe( this );
     }
 }
 
 void
 Observer::metadataChanged( const TrackPtr &track )
 {
     Q_UNUSED( track );
 }
 
 void
 Observer::metadataChanged( const ArtistPtr &artist )
 {
     Q_UNUSED( artist );
 }
 
 void
 Observer::metadataChanged( const AlbumPtr &album )
 {
     Q_UNUSED( album );
 }
 
 void
 Observer::metadataChanged( const ComposerPtr &composer )
 {
     Q_UNUSED( composer );
 }
 
 void
 Observer::metadataChanged( const GenrePtr &genre )
 {
     Q_UNUSED( genre );
 }
 
 void
 Observer::metadataChanged( const YearPtr &year )
 {
     Q_UNUSED( year );
 }
 
 void
 Observer::entityDestroyed()
 {
 }
 
 void
 Observer::subscribeTo( Base *ptr )
 {
     if( !ptr )
         return;
     QMutexLocker locker( &m_subscriptionsMutex );
     ptr->subscribe( this );
     m_subscriptions.insert( ptr );
 }
 
 void
 Observer::unsubscribeFrom( Base *ptr )
 {
     QMutexLocker locker( &m_subscriptionsMutex );
     if( ptr )
         ptr->unsubscribe( this );
     m_subscriptions.remove( ptr );
 }
 
 void
 Observer::destroyedNotify( Base *ptr )
 {
     {
         QMutexLocker locker( &m_subscriptionsMutex );
         m_subscriptions.remove( ptr );
     }
     entityDestroyed();
 }