WP_Customize_Nav_Menu_Item_Setting::filter_wp_get_nav_menu_items()
Method: Filters the wp_get_nav_menu_items() result to supply the previewed menu items.
Source: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php:477
WP_Customize_Nav_Menu_Item_Setting::sort_wp_get_nav_menu_items()
Method: Re-apply the tail logic also applied on $items by wp_get_nav_menu_items().
Source: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php:553
WP_Customize_Nav_Menu_Item_Setting::value_as_wp_post_nav_menu_item()
Method: Get the value emulated into a WP_Post and set up as a nav_menu_item.
Source: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php:586
WP_Customize_Nav_Menu_Item_Setting::sanitize()
Method: Sanitize an input.
Source: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php:661