lightspeeddevelopment/lsx

<?php
/**
 * LSX functions and definitions - Navigation Walker.
 *
 * @package    lsx
 * @subpackage navigation
 * @category   bootstrap-walker
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

add_filter( 'nav_menu_item_id', '__return_null' );

if ( ! function_exists( 'lsx_nav_menu_css_class' ) ) :

    /**
     * Remove the id="" on nav menu items.
     * Return 'menu-slug' for nav menu classes.
     *
     * @package    lsx
     * @subpackage navigation
     * @category   bootstrap-walker
     */
    function lsx_nav_menu_css_class( $classes, $item ) {
        $slug    = sanitize_title( $item->title );
        $classes = preg_replace( '/(current(-menu-|[-_]page[-_])(item|parent|ancestor))/', 'active', $classes );
        $classes = preg_replace( '/^((menu|page)[-_\w+]+)+/', '', $classes );

        $classes[] = 'menu-' . $slug;
        $classes   = array_unique( $classes );

        return array_filter( $classes, 'lsx_is_element_empty' );
    }

endif;

add_filter( 'nav_menu_css_class', 'lsx_nav_menu_css_class', 10, 2 );

if ( ! function_exists( 'lsx_nav_menu_args' ) ) :

    /**
     * Clean up wp_nav_menu_args.
     *
     * Remove the container.
     * Use LSX_Nav_Walker() by default.
     *
     * @package    lsx
     * @subpackage navigation
     * @category   bootstrap-walker
     */
    function lsx_nav_menu_args( $args = '' ) {
        $roots_nav_menu_args['container'] = false;

        if ( ! $args['items_wrap'] ) {
            $roots_nav_menu_args['items_wrap'] = '<ul class="%2$s">%3$s</ul>';
        }

        if ( current_theme_supports( 'bootstrap-top-navbar' ) && ! $args['depth'] ) {
            $roots_nav_menu_args['depth'] = 2;
        }

        if ( ! $args['walker'] ) {
            $roots_nav_menu_args['walker'] = new LSX_Nav_Walker();
        }

        return array_merge( $args, $roots_nav_menu_args );
    }

endif;

add_filter( 'wp_nav_menu_args', 'lsx_nav_menu_args' );