1 files changed, 36 insertions, 0 deletions
diff --git a/www/wiki/resources/src/mediawiki/htmlform/cloner.js b/www/wiki/resources/src/mediawiki/htmlform/cloner.js
new file mode 100644
index 00000000..ab81580b
--- /dev/null
+++ b/www/wiki/resources/src/mediawiki/htmlform/cloner.js
@@ -0,0 +1,36 @@
+/*
+ * HTMLForm enhancements:
+ * Add/remove cloner clones without having to resubmit the form.
+ */
+( function ( mw, $ ) {
+
+	var cloneCounter = 0;
+
+	mw.hook( 'htmlform.enhance' ).add( function ( $root ) {
+		$root.find( '.mw-htmlform-cloner-delete-button' ).filter( ':input' ).click( function ( ev ) {
+			ev.preventDefault();
+			$( this ).closest( 'li.mw-htmlform-cloner-li' ).remove();
+		} );
+
+		$root.find( '.mw-htmlform-cloner-create-button' ).filter( ':input' ).click( function ( ev ) {
+			var $ul, $li, html;
+
+			ev.preventDefault();
+
+			$ul = $( this ).prev( 'ul.mw-htmlform-cloner-ul' );
+
+			html = $ul.data( 'template' ).replace(
+				new RegExp( mw.RegExp.escape( $ul.data( 'uniqueId' ) ), 'g' ),
+				'clone' + ( ++cloneCounter )
+			);
+
+			$li = $( '<li>' )
+				.addClass( 'mw-htmlform-cloner-li' )
+				.html( html )
+				.appendTo( $ul );
+
+			mw.hook( 'htmlform.enhance' ).fire( $li );
+		} );
+	} );
+
+}( mediaWiki, jQuery ) );