IInput, IOutput: Add errorEncountered()

src/Backend/IInput.h

@@ -38,6 +38,7 @@ namespace Backend
         virtual void    onEndReached() = 0;
         virtual void    onPositionChanged( int64_t ) = 0;
         virtual void    onLengthChanged( int64_t ) = 0;
+        virtual void    onErrorEncountered() = 0;
     };
 
     class IInput

src/Backend/IOutput.h

@@ -38,6 +38,7 @@ namespace Backend
         virtual void    onPlaying() = 0;
         virtual void    onStopped() = 0;
         virtual void    onVolumeChanged() = 0;
+        virtual void    onErrorEncountered() = 0;
     };
 
     class IOutput

src/Tools/OutputEventWatcher.cpp

@@ -44,3 +44,9 @@ OutputEventWatcher::onVolumeChanged()
 {
     emit volumeChanged();
 }
+
+void
+OutputEventWatcher::onErrorEncountered()
+{
+    emit errorEncountered();
+}

src/Tools/OutputEventWatcher.h

@@ -37,11 +37,13 @@ private:
     virtual void    onPlaying();
     virtual void    onStopped();
     virtual void    onVolumeChanged();
+    virtual void    onErrorEncountered();
 
 signals:
     void            playing();
     void            stopped();
     void            volumeChanged();
+    void            errorEncountered();
 };
 
 #endif // OUTPUTEVENTWATCHER_H

src/Tools/RendererEventWatcher.cpp

@@ -69,3 +69,9 @@ RendererEventWatcher::onLengthChanged( int64_t length )
 {
     emit lengthChanged( length );
 }
+
+void
+RendererEventWatcher::onErrorEncountered()
+{
+    emit errorEncountered();
+}

src/Tools/RendererEventWatcher.h

@@ -43,6 +43,7 @@ private:
     virtual void    onVolumeChanged();
     virtual void    onPositionChanged( int64_t );
     virtual void    onLengthChanged( int64_t );
+    virtual void    onErrorEncountered();
 
 signals:
     void            playing();
@@ -52,6 +53,7 @@ signals:
     void            volumeChanged();
     void            positionChanged( qint64 );
     void            lengthChanged( qint64 );
+    void            errorEncountered();
 };
 
 #endif // RENDEREREVENTWATCHER_H