enable wait cursor when wms search is ongoing (closes #4625)

src/providers/wms/qgswmssourceselect.cpp

@@ -1041,6 +1041,8 @@ void QgsWMSSourceSelect::on_btnSearch_clicked()
   // disable Add WMS button
   btnAddWMS->setEnabled( false );
 
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+
   QSettings settings;
   QString mySearchUrl = settings.value( "/qgis/WMSSearchUrl", "http://geopole.org/wms/search?search=%1&type=rss" ).toString();
   QUrl url( mySearchUrl.arg( leSearchTerm->text() ) );
@@ -1052,6 +1054,8 @@ void QgsWMSSourceSelect::on_btnSearch_clicked()
 
 void QgsWMSSourceSelect::searchFinished()
 {
+  QApplication::restoreOverrideCursor();
+
   QNetworkReply *r = qobject_cast<QNetworkReply *>( sender() );
   if ( !r )
     return;