wp_edit_nav_menu_walker filter-hook . WP 3.0.0

Filters the Walker class used when adding nav menu items.

Usage

add_filter( 'wp_edit_nav_menu_walker', 'filter_function_name_3889', 10, 2 );
function filter_function_name_3889( $class, $menu_id ){
	// filter...

	return $class;
}

$class(string)

The walker class to use.
Default: 'Walker_Nav_Menu_Edit'

$menu_id(int)

ID of the menu being rendered.

Where the hook is called

$walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $menu_id );

$walker_class_name = apply_filters( 'wp_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $_POST['menu'] );

Where in WP core the hook is used WordPress