* Auto-expand grouped PlayableModels.

src/libtomahawk/playlist/PlayableModel.cpp

@@ -711,6 +711,8 @@ PlayableModel::insertInternal( const QList< T >& items, int row, const QList< To
 
     emit endInsertRows();
     emit itemCountChanged( rowCount( QModelIndex() ) );
+    if ( parent.isValid() )
+        emit expandRequest( parent );
 
     finishLoading();
 }

src/libtomahawk/playlist/PlayableModel.h

@@ -147,6 +147,8 @@ signals:
     void changed();
     void currentIndexChanged();
 
+    void expandRequest( const QPersistentModelIndex& index );
+
 public slots:
     virtual void setCurrentIndex( const QModelIndex& index );
 

src/libtomahawk/playlist/PlayableProxyModel.cpp

@@ -112,6 +112,7 @@ PlayableProxyModel::setSourcePlayableModel( PlayableModel* sourceModel )
         disconnect( m_model, SIGNAL( indexPlayable( QModelIndex ) ), this, SLOT( onIndexPlayable( QModelIndex ) ) );
         disconnect( m_model, SIGNAL( indexResolved( QModelIndex ) ), this, SLOT( onIndexResolved( QModelIndex ) ) );
         disconnect( m_model, SIGNAL( currentIndexChanged() ), this, SIGNAL( currentIndexChanged() ) );
+        disconnect( m_model, SIGNAL( expandRequest( QPersistentModelIndex ) ), this, SLOT( expandRequested( QPersistentModelIndex ) ) );
     }
 
     m_model = sourceModel;
@@ -124,6 +125,7 @@ PlayableProxyModel::setSourcePlayableModel( PlayableModel* sourceModel )
         connect( m_model, SIGNAL( indexPlayable( QModelIndex ) ), SLOT( onIndexPlayable( QModelIndex ) ) );
         connect( m_model, SIGNAL( indexResolved( QModelIndex ) ), SLOT( onIndexResolved( QModelIndex ) ) );
         connect( m_model, SIGNAL( currentIndexChanged() ), SIGNAL( currentIndexChanged() ) );
+        connect( m_model, SIGNAL( expandRequest( QPersistentModelIndex ) ), SLOT( expandRequested( QPersistentModelIndex ) ) );
     }
 
     QSortFilterProxyModel::setSourceModel( m_model );
@@ -660,3 +662,10 @@ PlayableProxyModel::onIndexResolved( const QModelIndex& index )
 {
     emit indexResolved( mapFromSource( index ) );
 }
+
+
+void
+PlayableProxyModel::expandRequested( const QPersistentModelIndex& idx )
+{
+    emit expandRequest( QPersistentModelIndex( mapFromSource( idx ) ) );
+}

src/libtomahawk/playlist/PlayableProxyModel.h

@@ -99,6 +99,8 @@ signals:
 
     void itemCountChanged( unsigned int items );
 
+    void expandRequest( const QPersistentModelIndex& index );
+
 protected:
     virtual bool filterAcceptsRow( int sourceRow, const QModelIndex& sourceParent ) const;
     virtual bool lessThan( const QModelIndex& left, const QModelIndex& right ) const;
@@ -109,6 +111,8 @@ private slots:
     void onIndexPlayable( const QModelIndex& index );
     void onIndexResolved( const QModelIndex& index );
 
+    void expandRequested( const QPersistentModelIndex& index );
+
 private:
     virtual bool lessThan( int column, const Tomahawk::query_ptr& left, const Tomahawk::query_ptr& right ) const;
 

src/libtomahawk/playlist/PlaylistModel.cpp

@@ -331,6 +331,8 @@ PlaylistModel::insertEntries( const QList< Tomahawk::plentry_ptr >& entries, int
 
     emit endInsertRows();
     emit itemCountChanged( rowCount( QModelIndex() ) );
+    if ( parent.isValid() )
+        emit expandRequest( parent );
 }
 
 

src/libtomahawk/playlist/TrackView.cpp

@@ -63,6 +63,7 @@ TrackView::TrackView( QWidget* parent )
     , m_dragging( false )
     , m_updateContextView( true )
     , m_alternatingRowColors( false )
+    , m_autoExpanding( true )
     , m_contextMenu( new ContextMenu( this ) )
 {
     setFrameShape( QFrame::NoFrame );
@@ -162,6 +163,7 @@ TrackView::setProxyModel( PlayableProxyModel* model )
         disconnect( m_proxyModel, SIGNAL( rowsInserted( QModelIndex, int, int ) ), this, SLOT( onViewChanged() ) );
         disconnect( m_proxyModel, SIGNAL( rowsInserted( QModelIndex, int, int ) ), this, SLOT( verifySize() ) );
         disconnect( m_proxyModel, SIGNAL( rowsRemoved( QModelIndex, int, int ) ), this, SLOT( verifySize() ) );
+        disconnect( m_proxyModel, SIGNAL( expandRequest( QPersistentModelIndex ) ), this, SLOT( expand( QPersistentModelIndex ) ) );
     }
 
     m_proxyModel = model;
@@ -172,6 +174,7 @@ TrackView::setProxyModel( PlayableProxyModel* model )
     connect( m_proxyModel, SIGNAL( rowsInserted( QModelIndex, int, int ) ), SLOT( onViewChanged() ) );
     connect( m_proxyModel, SIGNAL( rowsInserted( QModelIndex, int, int ) ), SLOT( verifySize() ) );
     connect( m_proxyModel, SIGNAL( rowsRemoved( QModelIndex, int, int ) ), SLOT( verifySize() ) );
+    connect( m_proxyModel, SIGNAL( expandRequest( QPersistentModelIndex ) ), SLOT( expand( QPersistentModelIndex ) ) );
 
     m_delegate = new PlaylistItemDelegate( this, m_proxyModel );
     QTreeView::setItemDelegate( m_delegate );
@@ -205,11 +208,8 @@ void
 TrackView::setPlayableModel( PlayableModel* model )
 {
     if ( m_model ) {
-        disconnect( m_model, SIGNAL( loadingStarted() ),
+        disconnect( m_model, SIGNAL( loadingStarted() ), m_loadingSpinner, SLOT( fadeIn() ) );
-                 m_loadingSpinner, SLOT( fadeIn() ) );
+        disconnect( m_model, SIGNAL( loadingFinished() ), m_loadingSpinner, SLOT( fadeOut() ) );
-        disconnect( m_model, SIGNAL( loadingFinished() ),
-                 m_loadingSpinner, SLOT( fadeOut() ) );
-
     }
 
     m_model = model;
@@ -236,10 +236,13 @@ TrackView::setPlayableModel( PlayableModel* model )
             setHorizontalScrollBarPolicy( Qt::ScrollBarAsNeeded );
     }
 
-    connect( m_model, SIGNAL( loadingStarted() ),
+    connect( m_model, SIGNAL( loadingStarted() ), m_loadingSpinner, SLOT( fadeIn() ) );
-             m_loadingSpinner, SLOT( fadeIn() ) );
+    connect( m_model, SIGNAL( loadingFinished() ), m_loadingSpinner, SLOT( fadeOut() ) );
-    connect( m_model, SIGNAL( loadingFinished() ),
+
-             m_loadingSpinner, SLOT( fadeOut() ) );
+    if ( m_autoExpanding )
+    {
+        expandAll();
+    }
 
     onViewChanged();
     emit modelChanged();
@@ -842,3 +845,10 @@ TrackView::setAlternatingRowColors( bool enable )
     m_alternatingRowColors = enable;
     QTreeView::setAlternatingRowColors( enable );
 }
+
+
+void
+TrackView::expand( const QPersistentModelIndex& idx )
+{
+    QTreeView::expand( idx );
+}

src/libtomahawk/playlist/TrackView.h

@@ -85,6 +85,7 @@ public:
     void setAutoResize( bool b );
 
     void setAlternatingRowColors( bool enable );
+    void setAutoExpanding( bool enable );
 
     // Starts playing from the beginning if resolved, or waits until a track is playable
     void startPlayingFromStart();
@@ -100,6 +101,8 @@ public slots:
     void onViewChanged();
     void onScrollTimeout();
 
+    void expand( const QPersistentModelIndex& idx );
+
 signals:
     void itemActivated( const QModelIndex& index );
     void querySelected( const Tomahawk::query_ptr& query );
@@ -155,6 +158,7 @@ private:
     bool m_updateContextView;
     bool m_autoResize;
     bool m_alternatingRowColors;
+    bool m_autoExpanding;
 
     QModelIndex m_contextMenuIndex;