I stumbled across this article, I think it could be of tremendous use to you. It helped me understand it a lot better. I believe there was a question on here in which (I think) @Rarst answered that linked to it, but I can’t seem to find it. If someone can find it and edit … Read more
Your my_extended_walker class is OK, but when you call the wp_nav_menu function use the items_wrap parameter. wp_nav_menu( array( ‘items_wrap’ => ‘<p>%3$s</p>’, ‘walker’=>new my_extended_walker() ) ); The start_lvl is used for children elements.
I searched and read about the walker class. I ran tests, I played around with the code and I finally understood. I hope this can be helpful to others too. You’ll need to implement the walker class for this. Here is a simple example. $defaults = array( ‘theme_location’ => ‘primary’, ‘container’ => ‘ul’, ‘menu_class’ => … Read more
Call wp_get_nav_menu_object to get a menu object, which will give you the count of items for that menu. Example: // Get menu object $my_menu = wp_get_nav_menu_object( ‘your-menu-name-or-slug’ ); // Echo count of items in menu echo $my_menu->count; Hope that helps.
If I understand the problem setup correctly, you could try to do the break and widget class counting within the wp_nav_menu_objects filter. Here’s an updated example, it’s rather expanded because of the extra debug part: add_filter( ‘wp_nav_menu_objects’, function( $items, $args ) { // Only apply this for the ‘primary’ menu: if( ‘primary’ !== $args->theme_location ) … Read more
I get this error when there are no menus defined or no menus set for the location at Appearance->Menus. When that occurs wp_nav_menu uses a page walker fallback. The fallback (default) for wp_nav_menu is wp_walker_page which uses wp_page_menu which uses wp_list_pages which uses walk_page_tree which uses Walker_Page not Walker_Nav_Menu. And apparently the two walkers are … Read more
You don’t need a walker in this case. A filter called wp_nav_menu_items is available. It allows you to edit the list items of a menu. Just append your own list item with search field. add_filter( ‘wp_nav_menu_items’, ‘add_search_to_nav’, 10, 2 ); function add_search_to_nav( $items, $args ) { $items .= ‘<li>SEARCH</li>’; return $items; } Note: if you … Read more
If you look at implementation of WP_Nav_Menu_Widget class you will see the following code: function widget($args, $instance) { // Get menu $nav_menu = ! empty( $instance[‘nav_menu’] ) ? wp_get_nav_menu_object( $instance[‘nav_menu’] ) : false; if ( !$nav_menu ) return; $instance[‘title’] = apply_filters( ‘widget_title’, empty( $instance[‘title’] ) ? ” : $instance[‘title’], $instance, $this->id_base ); echo $args[‘before_widget’]; if … Read more
This is the walker I used to display only children of the current menu item. Or the menu items siblings if it doesn’t have any children of its own. There are comments throughout the class explaining each section <?php class SH_Child_Only_Walker extends Walker_Nav_Menu { private $ID; private $depth; private $classes = array(); private $child_count = … Read more
Using a custom Walker, the start_el() method has access to $depth param: when it is 0 the elemnt is a top one, and we can use this info to maintain an internal counter. When the counter reach a limit, we can use DOMDocument to get from full HTML output just the last element added, wrap … Read more