1 files changed, 24 insertions, 0 deletions
diff --git a/www/wiki/resources/src/mediawiki.special/mediawiki.special.changeslist.legend.js b/www/wiki/resources/src/mediawiki.special/mediawiki.special.changeslist.legend.js
new file mode 100644
index 00000000..07927626
--- /dev/null
+++ b/www/wiki/resources/src/mediawiki.special/mediawiki.special.changeslist.legend.js
@@ -0,0 +1,24 @@
+/*!
+ * Script for changes list legend
+ */
+
+/* Remember the collapse state of the legend on recent changes and watchlist pages. */
+( function ( mw ) {
+	var
+		cookieName = 'changeslist-state',
+		// Expanded by default
+		doCollapsibleLegend = function ( $container ) {
+			$container.find( '.mw-changeslist-legend' )
+				.makeCollapsible( {
+					collapsed: mw.cookie.get( cookieName ) === 'collapsed'
+				} )
+				.on( 'beforeExpand.mw-collapsible', function () {
+					mw.cookie.set( cookieName, 'expanded' );
+				} )
+				.on( 'beforeCollapse.mw-collapsible', function () {
+					mw.cookie.set( cookieName, 'collapsed' );
+				} );
+		};
+
+	mw.hook( 'wikipage.content' ).add( doCollapsibleLegend );
+}( mediaWiki ) );