Ticket #37231: 37231.5.diff

wp-admin/css/edit.css

@@ -616 +616 @@
         position: absolute;
 }
 
-#poststuff h3.hndle, /* Back-compat for pre-4.4 */
+#poststuff .hndle,
 #poststuff .stuffbox > h3, /* Back-compat for pre-4.4 */
 #poststuff h2 {
         font-size: 14px;

wp-admin/includes/template.php

@@ -978 +978 @@
  * Meta-Box template function
  *
  * @since 2.5.0
+ * @since 4.6.0 Added the $args parameter with support for the $heading_level arg.
  *
  * @global array $wp_meta_boxes
  *
@@ -985 +986 @@
  * @param string|WP_Screen $screen  Screen identifier
  * @param string           $context box context
  * @param mixed            $object  gets passed to the box callback function as first parameter
+ * @param array            $args    {
+ *        Other args.
+ * 
+ *        @param int $heading_level What level heading to use for the meta box titles. Default is 2 (h2).
+ * }
  * @return int number of meta_boxes
  */
-function do_meta_boxes( $screen, $context, $object ) {
+function do_meta_boxes( $screen, $context, $object, $args = array() ) {
         global $wp_meta_boxes;
         static $already_sorted = false;
 
+        $args = array_merge( array( 'heading_level' => 2 ), $args );
+
+        if ( $args['heading_level'] < 1 || $args['heading_level'] > 6 ) {
+                $args['heading_level'] = 2;
+        }
+
         if ( empty( $screen ) )
                 $screen = get_current_screen();
         elseif ( is_string( $screen ) )
@@ -1032 +1044 @@
                                                 echo '<span class="toggle-indicator" aria-hidden="true"></span>';
                                                 echo '</button>';
                                         }
-                                        echo "<h2 class='hndle'><span>{$box['title']}</span></h2>\n";
+                                        echo "<h{$args['heading_level']} class='hndle'><span>{$box['title']}</span></h{$args['heading_level']}>\n";
                                         echo '<div class="inside">' . "\n";
                                         call_user_func($box['callback'], $object, $box);
                                         echo "</div>\n";