Add tfoot emulation to tablesorter. Fixes part of the complaints in bug 31060

diff --git a/resources/jquery/jquery.tablesorter.js b/resources/jquery/jquery.tablesorter.js
index 0030b4c..8150254 100644 (file)
--- a/resources/jquery/jquery.tablesorter.js
+++ b/resources/jquery/jquery.tablesorter.js
@@ -224,19 +224,36 @@
         * This only treats a row as a header row if it contains only <th>s (no <td>s)
         * and if it is preceded entirely by header rows. The algorithm stops when
         * it encounters the first non-header row.
+        * 
+        * After this, it will look at all rows at the bottom for footer rows
+        * And place these in a tfoot using similar rules.
         * @param $table jQuery object for a <table>
         */ 
-       function emulateTHead( $table ) {
-               var $thead = $( '<thead>' );
-               $table.find( 'tr' ).each( function() {
-                       if ( $(this).children( 'td' ).length > 0 ) {
-                               // This row contains a <td>, so it's not a header row
-                               // Stop here
-                               return false;
-                       }
-                       $thead.append( this );
-               } );
-               $table.prepend( $thead );
+       function emulateTHeadAndFoot( $table ) {
+               var $rows = $table.find( 'tr' );
+               if( !$table.get(0).tHead ) {
+                       var $thead = $( '<thead>' );
+                       $rows.each( function() {
+                               if ( $(this).children( 'td' ).length > 0 ) {
+                                       // This row contains a <td>, so it's not a header row
+                                       // Stop here
+                                       return false;
+                               }
+                               $thead.append( this );
+                       } );
+                       $table.prepend( $thead );
+               }
+               if( !$table.get(0).tFoot ) {
+                       var $tfoot = $( '<tfoot>' );
+                       var len = $rows.length;
+                       for ( var i = len-1; i >= 0; i-- ) {
+                               if( $( $rows[i] ).children( 'td' ).length > 0 ){
+                                       break;
+                               }
+                               $tfoot.prepend( $( $rows[i] ));
+                       } 
+                       $table.append( $tfoot );
+               }
        }
 
        function buildHeaders( table, msg ) {
@@ -532,8 +549,8 @@
                                        }
                                        if ( !table.tHead ) {
                                                // No thead found. Look for rows with <th>s and
-                                               // move them into a <thead> tag
-                                               emulateTHead( $table );
+                                               // move them into a <thead> tag or a <tfoot> tag
+                                               emulateTHeadAndFoot( $table );
                                                
                                                // Still no thead? Then quit
                                                if ( !table.tHead ) {