+ /**
+ * Might pages in this namespace require the use of the Signature button on
+ * the edit toolbar?
+ *
+ * @param int $index Index to check
+ * @return bool
+ */
+ public static function wantSignatures( $index ) {
+ global $wgExtraSignatureNamespaces;
+ return self::isTalk( $index ) || in_array( $index, $wgExtraSignatureNamespaces );
+ }
+