Ticket #31559: 31559.diff

src/wp-admin/includes/template.php

@@ -1054 +1054 @@
                                                 echo '<div class="handlediv" title="' . esc_attr__('Click to toggle') . '"><br /></div>';
                                         echo "<h3 class='hndle'><span>{$box['title']}</span></h3>\n";
                                         echo '<div class="inside">' . "\n";
-                                        call_user_func($box['callback'], $object, $box);
+
+                                        /**
+                                         * Fires first thing inside the meta_box content
+                                         *
+                                         * @since 4.1.2
+                                         *
+                                         * @param mixed $object The full object. Could be a post, user, comment (etc) object
+                                         * @param array $box    Array of meta_box parameters
+                                         */
+                                        do_action( 'before_meta_box_callback', $object, $box );
+
+                                        /**
+                                         * Fires first thing inside the meta_box content
+                                         *
+                                         * The dynamic portion of the hook name, `$box['id']`, is the id of the registered meta_box.
+                                         *
+                                         * @since 4.1.2
+                                         *
+                                         * @param mixed $object The full object. Could be a post, user, comment (etc) object
+                                         * @param array $box    Array of meta_box parameters
+                                         */
+                                        do_action( "before_{$box['id']}_meta_box_callback", $object, $box );
+
+                                        // Fire off the registered meta box callback function
+                                        call_user_func( $box['callback'], $object, $box );
+
+                                        /**
+                                         * Fires last inside the meta_box content
+                                         *
+                                         * @since 4.1.2
+                                         *
+                                         * @param mixed $object The full object. Could be a post, user, comment (etc) object
+                                         * @param array $box    Array of meta_box parameters
+                                         */
+                                        do_action( 'after_meta_box_callback', $object, $box );
+
+                                        /**
+                                         * Fires last inside the meta_box content
+                                         *
+                                         * The dynamic portion of the hook name, `$box['id']`, is the id of the registered meta_box.
+                                         *
+                                         * @since 4.1.2
+                                         *
+                                         * @param mixed $object The full object. Could be a post, user, comment (etc) object
+                                         * @param array $box    Array of meta_box parameters
+                                         */
+                                        do_action( "after_{$box['id']}_meta_box_callback", $object, $box );
+
                                         echo "</div>\n";
                                         echo "</div>\n";
                                 }