mw.rcfilters.ui.FilterMenuHeaderWidget.prototype.onModelUpdate = function () {
var currentView = this.model.getCurrentView();
mw.rcfilters.ui.FilterMenuHeaderWidget.prototype.onModelUpdate = function () {
var currentView = this.model.getCurrentView();
this.invertNamespacesButton.toggle( currentView === 'namespaces' );
this.backButton.toggle( currentView !== 'default' );
this.invertNamespacesButton.toggle( currentView === 'namespaces' );
this.backButton.toggle( currentView !== 'default' );