Ticket #13525: 13525.instructions.diff

wp-admin/includes/nav-menu.php

@@ -962 +962 @@
         // If the menu exists, get its items.
         if ( is_nav_menu( $menu ) ) {
                 $menu_items = wp_get_nav_menu_items( $menu->term_id, array('post_status' => 'any') );
+                $result = '<div id="menu-instructions" class="post-body-plain';
+                $result .= ( ! empty($menu_items) ) ? ' menu-instructions-inactive">' : '">';
+                $result .= __('Select menu items (pages, categories, links) from the boxes at left to begin building your custom menu.');
+                $result .= '</div>';
+                
+                if( empty($menu_items) )
+                        return $result;
 
                 $walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $menu_id );
 
@@ -970 +977 @@
                 else
                         return new WP_Error( 'menu_walker_not_exist', sprintf( __('The Walker class named <strong>%s</strong> does not exist.'), $walker_class_name ) );
 
-                return walk_nav_menu_tree( array_map('wp_setup_nav_menu_item', $menu_items), 0, (object) array('walker' => $walker ) );
+                $result .= walk_nav_menu_tree( array_map('wp_setup_nav_menu_item', $menu_items), 0, (object) array('walker' => $walker ) );
+                return $result;
         } elseif ( is_wp_error( $menu ) ) {
                 return $menu;
         }

wp-admin/js/nav-menu.dev.js

@@ -535 +535 @@
                         };
 
                         $.post( ajaxurl, params, function(menuMarkup) {
+                                var ins = $('#menu-instructions');
                                 processMethod(menuMarkup, params);
+                                if( ! ins.hasClass('menu-instructions-inactive') && ins.siblings().length )
+                                        ins.addClass('menu-instructions-inactive');
                                 callback();
                         });
                 },
@@ -826 +829 @@
                                         opacity : 0,
                                         height: 0
                                 }, 350, function() {
+                                        var ins = $('#menu-instructions');
                                         el.remove();
                                         children.shiftDepthClass(-1).updateParentMenuItemDBId();
+                                        if( ! ins.siblings().length )
+                                                ins.removeClass('menu-instructions-inactive');
                                 });
                 },
 

wp-admin/css/nav-menu.dev.css

@@ -409 +409 @@
 }
 
 /* Menu editing */
+.menu-instructions-inactive {
+        display: none;
+}
 .menu-item-settings {
         background: #F9F9F9;
         display:block;