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<?php

class Dexolix_Nav_walker extends Walker
{

var $db_fields = array('parent' => 'menu_item_parent', 'id' => 'db_id');

/**
 * Menu Fallback
 * =============
 * If this function is assigned to the wp_nav_menu's fallback_cb variable
 * and a menu has not been assigned to the theme location in the WordPress
 * menu manager the function with display nothing to a non-logged in user,
 * and will add a link to the WordPress menu manager if logged in as an admin.
 *
 * @param array $args passed from the wp_nav_menu function.
 */
 public static function fallback($args)
 {
 if (current_user_can('edit_theme_options')) {
 /* Get Arguments. */
 $container = $args['container'];
 $container_id = $args['container_id'];
 $container_class = $args['container_class'];
 $menu_class = $args['menu_class'];
 $menu_id = $args['menu_id'];
 if ($container) {
 echo '<' . esc_attr($container);
 if ($container_id) {
 echo ' id="' . esc_attr($container_id) . '"';
 }
 if ($container_class) {
 echo ' class="' . esc_attr($container_class) . '"';
 }
 echo '>';
 }
 echo '<ul';
 if ($menu_id) {
 echo ' id="' . esc_attr($menu_id) . '"';
 }
 if ($menu_class) {
 echo ' class="' . esc_attr($menu_class) . '"';
 }
 echo '>';
 echo '<li><a href="' . esc_url(admin_url('nav-menus.php')) . '" >' . esc_attr('Add a menu', 'dexolix') . '</a></li>';
 echo '</ul>';
 if ($container) {
 echo '</' . esc_attr($container) . '>';
 }
 }
 }

function start_lvl(&$output, $depth = 0, $args = array())
 {
 $indent = str_repeat("\t", $depth);
 $output .= "\n$indent<ul class='dexolix-sub-menu xpic-depth-$depth'>\n";
 }

function end_lvl(&$output, $depth = 0, $args = array())
 {
 $indent = str_repeat("\t", $depth);
 $output .= "$indent</ul>\n";
 }

function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0)
    {

global $wp_query;
        $indent = ($depth) ? str_repeat("\t", $depth) : '';
        $class_names = $value = '';
        $classes = empty($item->classes) ? array() : (array)$item->classes;

/* Add active class */
        if (in_array('current-menu-item', $classes)) {
            $classes[] = 'active';
            unset($classes['current-menu-item']);
        }

/* Check for children */
        $children = get_posts(array('post_type' => 'nav_menu_item', 'nopaging' => true, 'numberposts' => 1, 'meta_key' => '_menu_item_menu_item_parent', 'meta_value' => $item->ID));

if (!empty($children)) {
            $classes[] = 'has-sub';
        }

$class_names = join(' ', apply_filters('nav_menu_css_class', array_filter($classes), $item, $args));
        $class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';

$id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args);
        $id = $id ? ' id="' . esc_attr($id) . '"' : '';

$output .= $indent . '<li' . $id . $value . $class_names . '>';

$attributes = !empty($item->attr_title) ? ' title="' . esc_attr($item->attr_title) . '"' : '';
        $attributes .= !empty($item->target) ? ' target="' . esc_attr($item->target) . '"' : '';
        $attributes .= !empty($item->xfn) ? ' rel="' . esc_attr($item->xfn) . '"' : '';
        $attributes .= !empty($item->url) ? ' href="' . esc_attr($item->url) . '"' : '';

if (!empty($navmeta['dexolix_icon'])) {
 $item->title = '' . $item->title;
 }

if (!empty($navmeta['dexolix_menu_img']['url'])) {
 $item->title = '<img src="' . $navmeta['dexolix_menu_img']['url'] . '" class="xpc-menu-img"> ' . $item->title;
 }

if (!empty($navmeta['nav-tags'])) {
 $item->title = $item->title . '' . $navmeta['nav-tags'] . '';
 }

$item_output = $args->before;
 $item_output .= '<a' . $attributes . '>';
 $item_output .= $args->link_before . apply_filters('the_title', $item->title, $item->ID) . $args->link_after;
 $item_output .= '</a>';
 $item_output .= $args->after;

$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
    }

function end_el(&$output, $item, $depth = 0, $args = array())
 {
 $output .= "</li>\n";
 }

}