#193572 by Crell: fix drag and drop documentation and add drag and drop ordering to filter formats

includes/common.inc

@@ -1957,6 +1957,16 @@ function drupal_get_js($scope = 'header', $javascript = NULL) {
  * $form['my_elements'][$delta]['weight']['#attributes']['class'] = "my-elements-weight";
  * @endcode
  *
+ * Each row of the table must also have a class of "draggable" in order to enable the
+ * drag handles:
+ * @code
+ * $row = array(...);
+ * $rows[] = array(
+ *   'data' => $row,
+ *   'class' => 'draggable',
+ * );
+ * @endcode
+ * 
  * Calling drupal_add_tabledrag() would then be written as such:
  * @code
  * drupal_add_tabledrag('my-module-table', 'order', 'sibling', 'my-elements-weight');

modules/filter/filter.admin.inc

@@ -357,13 +357,19 @@ function theme_filter_admin_order($form) {
   foreach (element_children($form['names']) as $id) {
     // Don't take form control structures.
     if (is_array($form['names'][$id])) {
-      $rows[] = array(drupal_render($form['names'][$id]), drupal_render($form['weights'][$id]));
+      $form['weights'][$id]['#attributes']['class'] = 'filter-order-weight';
+      $rows[] = array(
+        'data' => array(drupal_render($form['names'][$id]), drupal_render($form['weights'][$id])),
+        'class' => 'draggable',
+      );
     }
   }
 
-  $output = theme('table', $header, $rows);
+  $output = theme('table', $header, $rows, array('id' => 'filter-order'));
   $output .= drupal_render($form);
 
+  drupal_add_tabledrag('filter-order', 'order', 'sibling', 'filter-order-weight', NULL, NULL, FALSE);
+  
   return $output;
 }