_wp_menu_item_classes_by_context [ WordPress Function ]
_wp_menu_item_classes_by_context ( $menu_items )
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| Parameters: |
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| Defined at: |
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Soorgelijke functies: _nav_menu_item_id_use_once, wp_nav_menu_item_link_meta_box, wp_nav_menu_item_post_type_meta_box, wp_nav_menu_item_taxonomy_meta_box, add_menu_classes
Add the class property classes for the current context, if applicable.
Source
<?php
function _wp_menu_item_classes_by_context( &$menu_items ) {
global $wp_query;
$queried_object = $wp_query->get_queried_object();
$queried_object_id = (int) $wp_query->queried_object_id;
$active_object = '';
$active_ancestor_item_ids = array();
$active_parent_item_ids = array();
$active_parent_object_ids = array();
$possible_taxonomy_ancestors = array();
$possible_object_parents = array();
$home_page_id = (int) get_option( 'page_for_posts' );
if ( $wp_query->is_singular && ! empty( $queried_object->post_type ) && ! is_post_type_hierarchical( $queried_object->post_type ) ) {
foreach ( (array) get_object_taxonomies( $queried_object->post_type ) as $taxonomy ) {
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$term_hierarchy = _get_term_hierarchy( $taxonomy );
$terms = wp_get_object_terms( $queried_object_id, $taxonomy, array( 'fields' => 'ids' ) );
if ( is_array( $terms ) ) {
$possible_object_parents = array_merge( $possible_object_parents, $terms );
$term_to_ancestor = array();
foreach ( (array) $term_hierarchy as $anc => $descs ) {
foreach ( (array) $descs as $desc )
$term_to_ancestor[ $desc ] = $anc;
}
foreach ( $terms as $desc ) {
do {
$possible_taxonomy_ancestors[ $taxonomy ][] = $desc;
if ( isset( $term_to_ancestor[ $desc ] ) ) {
$_desc = $term_to_ancestor[ $desc ];
unset( $term_to_ancestor[ $desc ] );
$desc = $_desc;
} else {
$desc = 0;
}
} while ( ! empty( $desc ) );
}
}
}
}
} elseif ( ! empty( $queried_object->post_type ) && is_post_type_hierarchical( $queried_object->post_type ) ) {
_get_post_ancestors( $queried_object );
} elseif ( ! empty( $queried_object->taxonomy ) && is_taxonomy_hierarchical( $queried_object->taxonomy ) ) {
$term_hierarchy = _get_term_hierarchy( $queried_object->taxonomy );
$term_to_ancestor = array();
foreach ( (array) $term_hierarchy as $anc => $descs ) {
foreach ( (array) $descs as $desc )
$term_to_ancestor[ $desc ] = $anc;
}
$desc = $queried_object->term_id;
do {
$possible_taxonomy_ancestors[ $queried_object->taxonomy ][] = $desc;
if ( isset( $term_to_ancestor[ $desc ] ) ) {
$_desc = $term_to_ancestor[ $desc ];
unset( $term_to_ancestor[ $desc ] );
$desc = $_desc;
} else {
$desc = 0;
}
} while ( ! empty( $desc ) );
}
$possible_object_parents = array_filter( $possible_object_parents );
$front_page_url = home_url();
foreach ( (array) $menu_items as $key => $menu_item ) {
$menu_items[$key]->current = false;
$classes = (array) $menu_item->classes;
$classes[] = 'menu-item';
$classes[] = 'menu-item-type-' . $menu_item->type;
$classes[] = 'menu-item-object-' . $menu_item->object;
// if the menu item corresponds to a taxonomy term for the currently-queried non-hierarchical post object
if ( $wp_query->is_singular && 'taxonomy' == $menu_item->type && in_array( $menu_item->object_id, $possible_object_parents ) ) {
$active_parent_object_ids[] = (int) $menu_item->object_id;
$active_parent_item_ids[] = (int) $menu_item->db_id;
$active_object = $queried_object->post_type;
// if the menu item corresponds to the currently-queried post or taxonomy object
} elseif (
$menu_item->object_id == $queried_object_id &&
(
( ! empty( $home_page_id ) && 'post_type' == $menu_item->type && $wp_query->is_home && $home_page_id == $menu_item->object_id ) ||
( 'post_type' == $menu_item->type && $wp_query->is_singular ) ||
( 'taxonomy' == $menu_item->type && ( $wp_query->is_category || $wp_query->is_tag || $wp_query->is_tax ) )
)
) {
$classes[] = 'current-menu-item';
$menu_items[$key]->current = true;
$_anc_id = (int) $menu_item->db_id;
while(
( $_anc_id = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
! in_array( $_anc_id, $active_ancestor_item_ids )
) {
$active_ancestor_item_ids[] = $_anc_id;
}
if ( 'post_type' == $menu_item->type && 'page' == $menu_item->object ) {
// Back compat classes for pages to match wp_page_menu()
$classes[] = 'page_item';
$classes[] = 'page-item-' . $menu_item->object_id;
$classes[] = 'current_page_item';
}
$active_parent_item_ids[] = (int) $menu_item->menu_item_parent;
$active_parent_object_ids[] = (int) $menu_item->post_parent;
$active_object = $menu_item->object;
// if the menu item corresponds to the currently-requested URL
} elseif ( 'custom' == $menu_item->object ) {
$_root_relative_current = untrailingslashit( $_SERVER['REQUEST_URI'] );
$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_root_relative_current;
$raw_item_url = strpos( $menu_item->url, '#' ) ? substr( $menu_item->url, 0, strpos( $menu_item->url, '#' ) ) : $menu_item->url;
$item_url = untrailingslashit( $raw_item_url );
$_indexless_current = untrailingslashit( preg_replace( '/index.php$/', '', $current_url ) );
if ( $raw_item_url && in_array( $item_url, array( $current_url, $_indexless_current, $_root_relative_current ) ) ) {
$classes[] = 'current-menu-item';
$menu_items[$key]->current = true;
$_anc_id = (int) $menu_item->db_id;
while(
( $_anc_id = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
! in_array( $_anc_id, $active_ancestor_item_ids )
) {
$active_ancestor_item_ids[] = $_anc_id;
}
if ( in_array( home_url(), array( untrailingslashit( $current_url ), untrailingslashit( $_indexless_current ) ) ) ) {
// Back compat for home link to match wp_page_menu()
$classes[] = 'current_page_item';
}
$active_parent_item_ids[] = (int) $menu_item->menu_item_parent;
$active_parent_object_ids[] = (int) $menu_item->post_parent;
$active_object = $menu_item->object;
// give front page item current-menu-item class when extra query arguments involved
} elseif ( $item_url == $front_page_url && is_front_page() ) {
$classes[] = 'current-menu-item';
}
if ( untrailingslashit($item_url) == home_url() )
$classes[] = 'menu-item-home';
}
// back-compat with wp_page_menu: add "current_page_parent" to static home page link for any non-page query
if ( ! empty( $home_page_id ) && 'post_type' == $menu_item->type && empty( $wp_query->is_page ) && $home_page_id == $menu_item->object_id )
$classes[] = 'current_page_parent';
$menu_items[$key]->classes = array_unique( $classes );
}
$active_ancestor_item_ids = array_filter( array_unique( $active_ancestor_item_ids ) );
$active_parent_item_ids = array_filter( array_unique( $active_parent_item_ids ) );
$active_parent_object_ids = array_filter( array_unique( $active_parent_object_ids ) );
// set parent's class
foreach ( (array) $menu_items as $key => $parent_item ) {
$classes = (array) $parent_item->classes;
$menu_items[$key]->current_item_ancestor = false;
$menu_items[$key]->current_item_parent = false;
if (
isset( $parent_item->type ) &&
(
// ancestral post object
(
'post_type' == $parent_item->type &&
! empty( $queried_object->post_type ) &&
is_post_type_hierarchical( $queried_object->post_type ) &&
in_array( $parent_item->object_id, $queried_object->ancestors ) &&
$parent_item->object != $queried_object->ID
) ||
// ancestral term
(
'taxonomy' == $parent_item->type &&
isset( $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
in_array( $parent_item->object_id, $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
(
! isset( $queried_object->term_id ) ||
$parent_item->object_id != $queried_object->term_id
)
)
)
) {
$classes[] = empty( $queried_object->taxonomy ) ? 'current-' . $queried_object->post_type . '-ancestor' : 'current-' . $queried_object->taxonomy . '-ancestor';
}
if ( in_array( intval( $parent_item->db_id ), $active_ancestor_item_ids ) ) {
$classes[] = 'current-menu-ancestor';
$menu_items[$key]->current_item_ancestor = true;
}
if ( in_array( $parent_item->db_id, $active_parent_item_ids ) ) {
$classes[] = 'current-menu-parent';
$menu_items[$key]->current_item_parent = true;
}
if ( in_array( $parent_item->object_id, $active_parent_object_ids ) )
$classes[] = 'current-' . $active_object . '-parent';
if ( 'post_type' == $parent_item->type && 'page' == $parent_item->object ) {
// Back compat classes for pages to match wp_page_menu()
if ( in_array('current-menu-parent', $classes) )
$classes[] = 'current_page_parent';
if ( in_array('current-menu-ancestor', $classes) )
$classes[] = 'current_page_ancestor';
}
$menu_items[$key]->classes = array_unique( $classes );
}
}
?>
Examples [ wp-snippets.com ]
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