Hiding great grandchildrens’ cousins 3 levels deep

Hi Deanne,

I have expanded the action from this support thread with the following addition:

• When viewing a great grandchild item (3 levels down), menu items which are great grandchildren but not siblings of the current item will not display.

use Advanced_Sidebar_Menu\Nav_Menu\Item; use Advanced_Sidebar_Menu\Nav_Menu\Objects; add_action( 'advanced-sidebar-menu/menus/navigation/objects/parse-hierarchy', function( array $hierarchy, $current, Objects $objects ) { /* @var Item $current */ foreach ( $objects->menu_items as $id => $item ) { if ( 0 !== (int) $item->menu_item_parent && ! $objects->is_in_current_family( $item->get_id() ) ) { unset( $objects->menu_items[ $id ] ); } } if ( $current ) { if ( $current->get_parent() ) { if ( $current->get_parent()->get_parent() ) { // Three levels deep. if ( $current->get_parent()->get_parent()->get_parent() ) { foreach ( $current->get_parent()->get_parent()->get_parent()->get_children() as $great_uncle ) { if ( $current->get_parent()->get_parent() !== $great_uncle ) { foreach ( $great_uncle->get_children() as $second_cousin ) { foreach ( $second_cousin->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } } else { // Two levels deep. foreach ( $current->get_parent()->get_parent()->get_children() as $uncle ) { if ( $current->get_parent() !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } } else { // One level deep. foreach ( $current->get_parent()->get_children() as $uncle ) { if ( $current !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } // On a top level item. } else { foreach ( $current->get_children() as $child ) { foreach ( $child->get_children() as $grandchild ) { unset( $objects->menu_items[ $grandchild->get_id() ] ); } } } } }, 10, 3 );

As far as using the page hierarchy to adjust the display of the navigation menu:

I’m afraid navigation menus have their own hierarchy which is not aware nor linked to a page hierarchy. While theoretically possible to compute the intersection of the 2 hierarchies and make adjustments base on intersection, it would require a custom widget and is beyond what we can reasonably suggest via actions and filters.

Assuming you don’t want these missing widgets to show up in other menus, one solution would be to add these missing pages to a separate menu used specifically for the widget. I realize this means maintaining a separate menu but it might get the job done.

Have a great day!

Hi Deanne,

I have adjusted the last to filter to also remove all great grandchildren from the menu unless they are the current menu item or a direct sibling of the current menu item.

use Advanced_Sidebar_Menu\Nav_Menu\Item; use Advanced_Sidebar_Menu\Nav_Menu\Objects; add_action( 'advanced-sidebar-menu/menus/navigation/objects/parse-hierarchy', function( array $hierarchy, $current, Objects $objects ) { /* @var Item $current */ foreach ( $objects->menu_items as $id => $item ) { if ( 0 !== (int) $item->menu_item_parent && ! $objects->is_in_current_family( $item->get_id() ) ) { unset( $objects->menu_items[ $id ] ); } } if ( $current ) { if ( $current->get_parent() ) { if ( $current->get_parent()->get_parent() ) { // Two levels deep. foreach ( $current->get_parent()->get_parent()->get_children() as $uncle ) { if ( $current->get_parent() !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } else { // One level deep. foreach ( $current->get_parent()->get_children() as $uncle ) { if ( $current !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } // On a top level item. } else { foreach ( $current->get_children() as $child ) { foreach ( $child->get_children() as $grandchild ) { unset( $objects->menu_items[ $grandchild->get_id() ] ); } } } // Remove great-grandchildren if not viewing one. // If viewing one, show current, and it's siblings. foreach ( $objects->get_top_level_items() as $top ) { foreach ( $top->get_children() as $child ) { if ( $child ) { foreach ( $child->get_children() as $grandchild ) { if ( $grandchild ) { foreach ( $grandchild->get_children() as $great_grandchild ) { if ( $great_grandchild && $great_grandchild->get_parent() !== $current->get_parent() ) { unset( $objects->menu_items[ $great_grandchild->get_id() ] ); } } } } } } } } }, 10, 3 );

Have a great day!

Hi Deanne,

When on a great grandchild page, the action as written will remove other great grandchildren only. As the items mentioned in this screenshot are only first level grandchildren, they are not removed.

https://imgur.com/a/3hwWrjQ

I could adjust the action to also remove grandchildren from the menu, but the action does affect all menus so it will also remove the grandchildren from the original menu.

Hi Deanne,

I have made the following adjustments to the action:

1. Remove grandchild pages which are not parents, uncles, siblings or the current page.
2. Remove all orphaned menu items to prevent extras from ending up at top level because their parents are gone.

use Advanced_Sidebar_Menu\Nav_Menu\Item; use Advanced_Sidebar_Menu\Nav_Menu\Objects; function asm_is_orphan( $menu_items, $item ) { $parent = (int) $menu_items[ $item->get_id() ]->menu_item_parent; while ( 0 !== $parent ) { if ( ! isset( $menu_items[ $parent ] ) ) { return true; } $parent = (int) $menu_items[ $parent ]->menu_item_parent; } return false; } add_action( 'advanced-sidebar-menu/menus/navigation/objects/parse-hierarchy', function( array $hierarchy, $current, Objects $objects ) { /* @var Item $current */ foreach ( $objects->menu_items as $id => $item ) { if ( 0 !== (int) $item->menu_item_parent && ! $objects->is_in_current_family( $item->get_id() ) ) { unset( $objects->menu_items[ $id ] ); } } if ( $current ) { if ( $current->get_parent() ) { if ( $current->get_parent()->get_parent() ) { // Two levels deep. foreach ( $current->get_parent()->get_parent()->get_children() as $uncle ) { if ( $current->get_parent() !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } if ( $current->get_parent()->get_parent()->get_parent() ) { // Three levels deep. // Remove grandchildren not in direct family. foreach ( $current->get_parent()->get_parent()->get_parent()->get_children() as $great_uncle ) { if ( $current->get_parent()->get_parent() !== $great_uncle ) { foreach ( $great_uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } } else { // One level deep. foreach ( $current->get_parent()->get_children() as $uncle ) { if ( $current !== $uncle ) { foreach ( $uncle->get_children() as $cousin ) { unset( $objects->menu_items[ $cousin->get_id() ] ); } } } } // On a top level item. } else { foreach ( $current->get_children() as $child ) { foreach ( $child->get_children() as $grandchild ) { unset( $objects->menu_items[ $grandchild->get_id() ] ); } } } // Remove great-grandchildren if not viewing one. // If viewing one, show current, and it's siblings. foreach ( $objects->get_top_level_items() as $top ) { foreach ( $top->get_children() as $child ) { if ( $child ) { foreach ( $child->get_children() as $grandchild ) { if ( $grandchild ) { foreach ( $grandchild->get_children() as $great_grandchild ) { if ( $great_grandchild && $great_grandchild->get_parent() !== $current->get_parent() ) { unset( $objects->menu_items[ $great_grandchild->get_id() ] ); } } } } } } } } // Cleanup any orphans to prevent superfluous menu items on the top level. foreach ( $objects->menu_items as $id => $item ) { if ( asm_is_orphan( $objects->menu_items, $item ) ) { unset( $objects->menu_items[ $id ] ); } } }, 10, 3 );

Have a great night!