How to retrieve depth of menu into template

Question

In wp_nav_menu i use for the menu, with custom walker, i can get the $depth parameter in the start_el function

function start_el(&$output, $item, $depth, $args) 

but, outside this wp_nav_menu(), how can i get the depth of the menu for the clicked item ? For instance :

• Home
• level1menuelement1 -level2menuelement1 (first element of first submenu) -level2menuelement2 (second element of first submenu)
• level1menuelement2
• ...

In that case, i want to know if my post is in a level 1 or not, to display a specific block or not.

Is there a codex function allowing to facilitate the retrieving of this depth or is it achieved programmatically ?

Thanks

Answer 1

how to get the relation between the page and the menu item ? = is there a WP function telling this page is linked to this menu item which has or hasn't a parent

Inside the walker, inside the start_el method (which you mentioned), $item->object_id is the page ID.

Otherwise, you need to pull the menu...

$locations = get_nav_menu_locations();
$nav_items = wp_get_nav_menu_items($locations['your-menu-location']);

... and loop over that array to match up the current page ID with the object_id in $nav_menu data... if I understand you and I am still not sure that I do.