File indexing completed on 2024-05-05 04:48:36

 /****************************************************************************************
  * 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/>.                           *
  * **************************************************************************************/
 
 #ifndef DELAYEDDOERS_H
 #define DELAYEDDOERS_H
 
 #include "amarok_export.h"
 
 #include <phonon/Global>
 
 #include <QObject>
 #include <QSet>
 
 namespace Phonon {
     class MediaObject;
     class MediaController;
 }
 
 /**
  * Abstract base helper class for helpers that do something with Phonon objects once
  * MediaObject transitions to appropriate state. Then it auto-deletes itself.
  */
 class AMAROK_EXPORT DelayedDoer : public QObject
 {
     Q_OBJECT
 
     public:
         explicit DelayedDoer( Phonon::MediaObject *mediaObject,
                               const QSet<Phonon::State> &applicableStates );
 
     protected:
         /**
          * This method gets called when MediaObject transitions to the right state.
          */
         virtual void performAction() = 0;
 
     private Q_SLOTS:
         void slotStateChanged( Phonon::State newState );
 
     protected:
         Phonon::MediaObject *m_mediaObject;
 
     private:
         QSet<Phonon::State> m_applicableStates;
 };
 
 /**
  * Helper class that calls seek() followed by play() on Phonon::MediaObject after it
  * emits stateChanged() with suitable new state and then auto-destructs itself.
  */
 class AMAROK_EXPORT DelayedSeeker : public DelayedDoer
 {
     Q_OBJECT
 
     public:
         DelayedSeeker( Phonon::MediaObject *mediaObject, qint64 seekTo, bool startPaused );
 
     Q_SIGNALS:
         void trackPositionChanged( qint64 position, bool userSeek );
 
     protected:
         void performAction() override;
 
         qint64 m_seekTo;
         bool m_startPaused;
 };
 
 class AMAROK_EXPORT DelayedTrackChanger : public DelayedSeeker
 {
     Q_OBJECT
 
     public:
         explicit DelayedTrackChanger( Phonon::MediaObject *mediaObject,
                                       Phonon::MediaController *mediaController,
                                       int trackNumber, qint64 seekTo, bool startPaused );
 
     protected:
         void performAction() override;
 
     private:
         Phonon::MediaController *m_mediaController;
         int m_trackNumber;
 };
 
 #endif // DELAYEDDOERS_H