Special:Watchlist: Don't try to render empty row

[lhc/web/wiklou.git] / includes / specials / SpecialWatchlist.php

diff --git a/includes/specials/SpecialWatchlist.php b/includes/specials/SpecialWatchlist.php
index 490e81f..9c28d06 100644 (file)
--- a/includes/specials/SpecialWatchlist.php
+++ b/includes/specials/SpecialWatchlist.php
@@ -79,6 +79,20 @@ class SpecialWatchlist extends ChangesListSpecialPage {
                parent::execute( $subpage );
        }
 
+       /**
+        * Return an array of subpages beginning with $search that this special page will accept.
+        *
+        * @param string $search Prefix to search for
+        * @param integer $limit Maximum number of results to return
+        * @return string[] Matching subpages
+        */
+       public function prefixSearchSubpages( $search, $limit = 10 ) {
+               // See also SpecialEditWatchlist::prefixSearchSubpages
+               $subpages = array( 'clear', 'edit', 'raw' );
+               $escaped = preg_quote( $search );
+               return array_slice( preg_grep( "/^$escaped/i", $subpages ), 0, $limit );
+       }
+
        /**
         * Get a FormOptions object containing the default options
         *
@@ -317,6 +331,14 @@ class SpecialWatchlist extends ChangesListSpecialPage {
                        $output->showLagWarning( $lag );
                }
 
+               # If no rows to display, show message before try to render the list
+               if ( $rows->numRows() == 0 ) {
+                       $output->wrapWikiMsg(
+                               "<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
+                       );
+                       return;
+               }
+
                $dbr->dataSeek( $rows, 0 );
 
                $list = ChangesList::newFromContext( $this->getContext() );
@@ -356,13 +378,7 @@ class SpecialWatchlist extends ChangesListSpecialPage {
                }
                $s .= $list->endRecentChangesList();
 
-               if ( $rows->numRows() == 0 ) {
-                       $output->wrapWikiMsg(
-                               "<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
-                       );
-               } else {
-                       $output->addHTML( $s );
-               }
+               $output->addHTML( $s );
        }
 
        /**