*/
mw.widgets.ComplexTitleInputWidget.prototype.setDisabled = function ( disabled ) {
mw.widgets.ComplexTitleInputWidget.parent.prototype.setDisabled.call( this, disabled );
- this.namespace.setDisabled( disabled );
- this.title.setDisabled( disabled );
+ if ( this.namespace ) {
+ this.namespace.setDisabled( disabled );
+ }
+
+ if ( this.title ) {
+ this.title.setDisabled( disabled );
+ }
+ return this;
};
}( jQuery, mediaWiki ) );