Fix viewspace not closed when last is not a KTE::View

apps/lib/kateviewspace.cpp

@@ -729,6 +729,11 @@ void KateViewSpace::closeTabRequest(int idx)
             m_tabBar->removeTab(idx);
             widget->deleteLater();
             Q_EMIT m_viewManager->mainWindow()->widgetRemoved(widget);
+
+            // if this was the last doc, let viewManager know we are empty
+            if (m_registeredDocuments.isEmpty() && m_tabBar->count() == 0) {
+                Q_EMIT viewSpaceEmptied(this);
+            }
         }
         return;
     }