* Only keep track of the 50 most recent tracks in WelcomeWidget. Don't auto-resolve playback-logs any longer.

src/libtomahawk/database/databasecommand_logplayback.cpp

@@ -44,7 +44,8 @@ DatabaseCommand_LogPlayback::postCommitHook()
     connect( this, SIGNAL( trackPlayed( Tomahawk::query_ptr ) ),
              source().data(), SLOT( onPlaybackFinished( Tomahawk::query_ptr ) ), Qt::QueuedConnection );
 
-    Tomahawk::query_ptr q = Tomahawk::Query::get( m_artist, m_track, QString(), uuid() );
+    // do not auto resolve this track
+    Tomahawk::query_ptr q = Tomahawk::Query::get( m_artist, m_track, QString() );
 
     if ( m_action == Finished )
     {

src/libtomahawk/playlist/playlistmodel.cpp

@@ -396,12 +396,16 @@ PlaylistModel::playlistEntries() const
 }
 
 
+void
+PlaylistModel::remove( unsigned int row, bool moreToCome )
+{
+    removeIndex( index( row, 0, QModelIndex() ), moreToCome );
+}
+
+
 void
 PlaylistModel::removeIndex( const QModelIndex& index, bool moreToCome )
 {
-    if ( isReadOnly() )
-        return;
-
     TrackModel::removeIndex( index );
 
     if ( !moreToCome && !m_playlist.isNull() )

src/libtomahawk/playlist/playlistmodel.h

@@ -62,6 +62,7 @@ public:
 
     void insert( unsigned int row, const Tomahawk::query_ptr& query );
 
+    void remove( unsigned int row, bool moreToCome = false );
     virtual void removeIndex( const QModelIndex& index, bool moreToCome = false );
 
 signals:

src/libtomahawk/playlist/trackmodel.cpp

@@ -26,6 +26,7 @@
 #include "utils/tomahawkutils.h"
 
 #include "album.h"
+#include "pipeline.h"
 
 using namespace Tomahawk;
 
@@ -370,3 +371,16 @@ TrackModel::onPlaybackStopped()
         oldEntry->setIsPlaying( false );
     }
 }
+
+
+void
+TrackModel::ensureResolved()
+{
+    for( int i = 0; i < rowCount( QModelIndex() ); i++ )
+    {
+        query_ptr query = itemFromIndex( index( i, 0, QModelIndex() ) )->query();
+
+        if ( !query->numResults() )
+            Pipeline::instance()->resolve( query );
+    }
+}

src/libtomahawk/playlist/trackmodel.h

@@ -76,6 +76,8 @@ public:
     virtual PlaylistInterface::RepeatMode repeatMode() const { return PlaylistInterface::NoRepeat; }
     virtual bool shuffled() const { return false; }
 
+    virtual void ensureResolved();
+
     virtual void append( const Tomahawk::query_ptr& query ) = 0;
 
     PlItem* itemFromIndex( const QModelIndex& index ) const;

src/libtomahawk/widgets/welcomewidget.cpp

@@ -31,7 +31,9 @@
 
 #include <QPainter>
 
-#define FILTER_TIMEOUT 280
+#define HISTORY_TRACK_ITEMS 50
+#define HISTORY_PLAYLIST_ITEMS 10
+#define HISTORY_RESOLVING_TIMEOUT 2500
 
 
 WelcomeWidget::WelcomeWidget( QWidget* parent )
@@ -46,7 +48,10 @@ WelcomeWidget::WelcomeWidget( QWidget* parent )
 
     m_tracksModel = new PlaylistModel( ui->tracksView );
     ui->tracksView->setModel( m_tracksModel );
-    m_tracksModel->loadHistory( Tomahawk::source_ptr() );
+    m_tracksModel->loadHistory( Tomahawk::source_ptr(), HISTORY_TRACK_ITEMS );
+
+    m_timer = new QTimer( this );
+    connect( m_timer, SIGNAL( timeout() ), SLOT( checkQueries() ) );
 
     connect( SourceList::instance(), SIGNAL( sourceAdded( Tomahawk::source_ptr ) ), SLOT( onSourceAdded( Tomahawk::source_ptr ) ) );
 
@@ -96,10 +101,25 @@ WelcomeWidget::onSourceAdded( const Tomahawk::source_ptr& source )
 }
 
 
+void
+WelcomeWidget::checkQueries()
+{
+    m_timer->stop();
+    m_tracksModel->ensureResolved();
+}
+
+
 void
 WelcomeWidget::onPlaybackFinished( const Tomahawk::query_ptr& query )
 {
     m_tracksModel->insert( 0, query );
+
+    if ( m_tracksModel->trackCount() > HISTORY_TRACK_ITEMS )
+        m_tracksModel->remove( HISTORY_TRACK_ITEMS );
+
+    if ( m_timer->isActive() )
+        m_timer->stop();
+    m_timer->start( HISTORY_RESOLVING_TIMEOUT );
 }
 
 

src/libtomahawk/widgets/welcomewidget.h

@@ -124,10 +124,13 @@ private slots:
     void onPlaylistActivated( QListWidgetItem* item );
     void onPlaybackFinished( const Tomahawk::query_ptr& query );
 
+    void checkQueries();
+
 private:
     Ui::WelcomeWidget *ui;
 
     PlaylistModel* m_tracksModel;
+    QTimer* m_timer;
 };
 
 #endif // WELCOMEWIDGET_H