Better keyboard support in Dictionaries tab:

1. Pressing Down Arrow allows to jump from the Quick Filter to the dictionaries list.
2. Navigating through dictionary list via keyboard (Up/Down) results in dictionary details
   to be shown on the right. Previously, only mouse clicks updated the dictionary info.

groups_widgets.cc

@@ -508,6 +508,11 @@ void DictListWidget::dropEvent( QDropEvent * event )
   }
 }
 
+void DictListWidget::focusInEvent( QFocusEvent * )
+{
+  emit gotFocus();
+}
+
 void DictListWidget::rowsInserted( QModelIndex const & parent, int start, int end )
 {
   QListView::rowsInserted( parent, start, end );
@@ -1046,13 +1051,21 @@ QuickFilterLine::~QuickFilterLine()
 
 void QuickFilterLine::applyTo( QAbstractItemView * source )
 {
+  m_source = source;
   m_proxyModel.setSourceModel( source->model() );
   source->setModel( &m_proxyModel );
 }
 
 QModelIndex QuickFilterLine::mapToSource( QModelIndex const & idx )
 {
-  return m_proxyModel.mapToSource( idx );
+  if ( &m_proxyModel == idx.model() )
+  {
+    return m_proxyModel.mapToSource( idx );
+  }
+  else
+  {
+    return idx;
+  }
 }
 
 void QuickFilterLine::filterChangedInternal()
@@ -1072,3 +1085,19 @@ void QuickFilterLine::focusFilterLine()
   setFocus();
   selectAll();
 }
+
+void QuickFilterLine::keyPressEvent( QKeyEvent * event )
+{
+  switch ( event->key() )
+  {
+    case Qt::Key_Down:
+      if ( m_source )
+      {
+        m_source->setCurrentIndex( m_source->model()->index( 0,0 ) );
+        m_source->setFocus();
+      }
+      break;
+    default:
+      ExtLineEdit::keyPressEvent( event );
+  }
+}

groups_widgets.hh

@@ -88,8 +88,12 @@ public:
   DictListModel * getModel()
   { return & model; }
 
+signals:
+  void gotFocus();
+
 protected:
   virtual void dropEvent( QDropEvent * event );
+  virtual void focusInEvent(QFocusEvent *);
 
   // We need these to to handle drag-and-drop focus issues
   virtual void rowsInserted( QModelIndex const & parent, int start, int end );
@@ -211,9 +215,13 @@ public:
 
   QModelIndex mapToSource( QModelIndex const & idx );
 
+protected:
+  virtual void keyPressEvent( QKeyEvent * event );
+
 private:
   QSortFilterProxyModel m_proxyModel;
   QAction m_focusAction;
+  QAbstractItemView * m_source;
 
 private slots:
   void filterChangedInternal();

orderandprops.cc

@@ -112,6 +112,17 @@ OrderAndProps::OrderAndProps( QWidget * parent,
   ui.dictionaryOrder->setContextMenuPolicy( Qt::CustomContextMenu );
   connect( ui.dictionaryOrder, SIGNAL( customContextMenuRequested( QPoint ) ),
            this, SLOT( contextMenuRequested( QPoint ) ) );
+
+  connect( ui.dictionaryOrder, SIGNAL( gotFocus() ),
+           this, SLOT( dictListFocused() ) );
+  connect( ui.inactiveDictionaries, SIGNAL( gotFocus() ),
+           this, SLOT( inactiveDictListFocused() ) );
+
+  connect ( ui.dictionaryOrder->selectionModel(), SIGNAL( selectionChanged ( const QItemSelection & , const QItemSelection & ) ),
+      this, SLOT( dictionarySelectionChanged( const QItemSelection & ) ) );
+  connect ( ui.inactiveDictionaries->selectionModel(), SIGNAL( selectionChanged( const QItemSelection &, const QItemSelection & ) ),
+      this, SLOT( inactiveDictionarySelectionChanged( QItemSelection const & ) ) );
+
   connect (ui.searchLine, SIGNAL( filterChanged( QString const & ) ),
       this, SLOT( filterChanged( QString const &) ) );
 }
@@ -141,14 +152,29 @@ void OrderAndProps::filterChanged( QString const & filterText)
   ui.dictionaryOrder->setAcceptDrops(filterText.isEmpty());
 }
 
-void OrderAndProps::on_dictionaryOrder_clicked( QModelIndex const & idx )
+void OrderAndProps::dictListFocused()
 {
-  describeDictionary( ui.dictionaryOrder, ui.searchLine->mapToSource( idx ) );
+  describeDictionary( ui.dictionaryOrder, ui.searchLine->mapToSource( ui.dictionaryOrder->currentIndex() ) );
 }
 
-void OrderAndProps::on_inactiveDictionaries_clicked( QModelIndex const & idx )
+void OrderAndProps::inactiveDictListFocused()
 {
-  describeDictionary( ui.inactiveDictionaries, idx );
+  describeDictionary( ui.inactiveDictionaries, ui.inactiveDictionaries->currentIndex() );
+}
+
+void OrderAndProps::dictionarySelectionChanged( const QItemSelection & current )
+{
+  if ( current.empty() )
+    return;
+
+  describeDictionary( ui.dictionaryOrder, ui.searchLine->mapToSource( current.front().topLeft() ) );
+}
+
+void OrderAndProps::inactiveDictionarySelectionChanged( QItemSelection const & current )
+{
+  if ( current.empty() )
+    return;
+  describeDictionary( ui.inactiveDictionaries, current.front().topLeft() );
 }
 
 void OrderAndProps::disableDictionaryDescription()
@@ -175,6 +201,11 @@ void OrderAndProps::describeDictionary( DictListWidget * lst, QModelIndex const
   {
     sptr< Dictionary::Class > dict = lst->getCurrentDictionaries()[ idx.row() ];
 
+    if ( !dict )
+    {
+      return;
+    }
+
     ui.dictionaryInformation->setEnabled( true );
 
     ui.dictionaryName->setText( QString::fromUtf8( dict->getName().c_str() ) );

orderandprops.hh

@@ -23,10 +23,12 @@ public:
 
 private slots:
 
-  void on_dictionaryOrder_clicked( QModelIndex const & );
-  void on_inactiveDictionaries_clicked( QModelIndex const & );
+  void dictionarySelectionChanged( const QItemSelection &current );
+  void inactiveDictionarySelectionChanged( const QItemSelection &current );
   void contextMenuRequested( const QPoint & pos );
   void filterChanged( QString const & filterText );
+  void dictListFocused();
+  void inactiveDictListFocused();
 
 private: