Add first-menu-item and last-menu-item classes

[core_2_duo]

Add first-menu-item and last-menu-item classes to nav menus items, including all child menus. It's may be useful for CSS when you have to build site with IE6-7 support, because you often need to set borders or colors of the first or of the last elements.

Pull request & code are here: ​https://github.com/WordPress/WordPress/pull/78

[core_2_duo]

Updated nav-menu-template.php

[fgirardey]

If you really want to support IE6-7 use this filter instead ​nav_menu_css_class :)

[core_2_duo]

Replying to fgirardey:

If you really want to support IE6-7 use this filter instead ​nav_menu_css_class :)

I use this filter now

function add_first_and_last($items) {
    $parents = array();
    foreach ($items as $key => $item) {
        if (! array_key_exists($item->menu_item_parent, $parents)) {
            $item->classes []= 'first-menu-item';
        } else {
            array_pop($items[$parents[$item->menu_item_parent]]->classes);
        }
        $parents[$item->menu_item_parent] = $key;
        $item->classes []= 'last-menu-item';
    }
    return $items;
}
add_filter('wp_nav_menu_objects', 'add_first_and_last');

It is similar to code, that I've added in nav-menu-template.php.

But I guess, you are right. It's kinda specific feature and it can be solved through filters, when you need it.

[helen]

Duplicate of #14250.