<?php 
function theme_setup_data()
  	{
	return $appointment_options=appointment_theme_setup_data();
  	}
  ?>
<?php
  // code for default_menu_walker.php 
function appointment_page_menu_args1($args) {
    if (!isset($args['show_home']))
        $args['show_home'] = true;
    return $args;
}

add_filter('wp_page_menu_args', 'appointment_page_menu_args1');

function webriti_fallback_page_menu($args = array()) {
    $defaults = array('sort_column' => 'menu_order, post_title', 'menu_class' => 'menu', 'echo' => true, 'link_before' => '', 'link_after' => '');
    $args = wp_parse_args($args, $defaults);
    $args = apply_filters('wp_page_menu_args', $args);
    $menu = '';
    $list_args = $args;
    // Show Home in the menu
    if (!empty($args['show_home'])) {
        if (true === $args['show_home'] || '1' === $args['show_home'] || 1 === $args['show_home'])
            $text = esc_html__('Home', 'appointment');
        else
            $text = $args['show_home'];
        $class = '';
        if (is_front_page() && !is_paged()) {
            $class = 'class="nav-item menu-item active"';
        } else {
            $class = 'class="nav-item menu-item"';
        }
        $menu .= '<li ' . $class . '><a class="nav-link 1" href="' . esc_url(home_url('/')) . '" title="' . esc_attr($text) . '">' . $args['link_before'] . $text . $args['link_after'] . '</a></li>';
        // If the front page is a page, add it to the exclude list
        if (get_option('show_on_front') == 'page') {
            if (!empty($list_args['exclude'])) {
                $list_args['exclude'] .= ',';
            } else {
                $list_args['exclude'] = '';
            }
            $list_args['exclude'] .= get_option('page_on_front');
        }
    }
    $list_args['echo'] = false;
    $list_args['title_li'] = '';
    $list_args['walker'] = new appointment_walker_page_menu1;
    $menu .= str_replace(array("\r", "\n", "\t"), '', wp_list_pages($list_args));
    if ($menu)
        $menu = '<ul class="' . esc_attr($args['menu_class']) . '">' . $menu . '</ul>';

    $menu = $menu . "\n";
    $menu = apply_filters('wp_page_menu', $menu, $args);
    if ($args['echo'])
        echo $menu;
    else
        return $menu;
}

class appointment_walker_page_menu1 extends Walker_Page {

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

    function start_el(&$output, $page, $depth = 0, $args = array(), $current_page = 0) {
        if ($depth)
            $indent = str_repeat("\t", $depth);
        else
            $indent = '';

        extract($args, EXTR_SKIP);
        $css_class = array('menu-item page_item dropdown', 'page-item-' . $page->ID);
        if (!empty($current_page)) {
            $_current_page = get_post($current_page);
            if (in_array($page->ID, $_current_page->ancestors))
                $css_class[] = 'current_page_ancestor';
            if ($page->ID == $current_page)
                $css_class[] = 'nav-item active';
            elseif ($_current_page && $page->ID == $_current_page->post_parent)
                $css_class[] = 'current_page_parent';
        } elseif ($page->ID == get_option('page_for_posts')) {
            $css_class[] = 'current_page_parent';
        }

        if ($depth === 0) {
            $css_class[] = 'dropdown';
        } else if ($depth > 0) {
            $css_class[] = 'dropdown-submenu';
        } else {
            $css_class[] = '';
        }

       if (isset($args['pages_with_children'][$page->ID]) && $depth >= 0) {
            $link_after = ' <b class="caret"></b>';
        }

        $css_class = implode(' ', apply_filters('page_css_class', $css_class, $page, $depth, $args, $current_page));
        $output .= $indent . '<li class="' . $css_class . '"><a href="' . esc_url(get_permalink($page->ID)) . '">' . $link_before . apply_filters('the_title', $page->post_title, $page->ID) . $link_after . '</a>';
        if (!empty($show_date)) {
            if ('modified' == $show_date)
                $time = $page->post_modified;
            else
                $time = $page->post_date;
            $output .= " " . mysql2date($date_format, $time);
        }
    }

}


// code for child theme appoinment_nav_walker.php 



/** nav-menu-walker.php */
class webriti_nav_walker extends Walker_Nav_Menu {	
	function start_lvl( &$output, $depth = 0, $args = array() ) {
		$indent = str_repeat("\t", $depth);
		$output .= "\n$indent<ul class=\"dropdown-menu\">\n";
	}
	function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

		$class_names = $value = '';

		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
		$classes[] = 'menu-item-' . $item->ID;
		if ($args->has_children && $depth > 0) {
			$classes[] = 'dropdown-submenu';
		} else if($args->has_children && $depth === 0) {
			$classes[] = 'dropdown';
		}
		$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( $item->url        ) .'"' : '';
		//$attributes .= ($args->has_children) 	    ? ' data-toggle="dropdown" data-target="#" class="dropdown-toggle"' : '';
                
		$item_output = $args->before;
		$item_output .= '<a'. $attributes .'>';
		$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
		$item_output .= ($args->has_children && $depth >=0) ? '<b class="caret"></b></a>' : '</a>';
		$item_output .= $args->after;

		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
	}
	function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {

		if ( !$element )
			return;

		$id_field = $this->db_fields['id'];

		//display this element
		if ( is_array( $args[0] ) )
			$args[0]['has_children'] = ! empty( $children_elements[$element->$id_field] );
		else if ( is_object( $args[0] ) ) 
			$args[0]->has_children = ! empty( $children_elements[$element->$id_field] ); 
		$cb_args = array_merge( array(&$output, $element, $depth), $args);
		call_user_func_array(array($this, 'start_el'), $cb_args);

		$id = $element->$id_field;

		// descend only when the depth is right and there are childrens for this element
		if ( ($max_depth == 0 || $max_depth > $depth+1 ) && isset( $children_elements[$id]) ) {

			foreach( $children_elements[ $id ] as $child ){

				if ( !isset($newlevel) ) {
					$newlevel = true;
					//start the child delimiter
					$cb_args = array_merge( array(&$output, $depth), $args);
					call_user_func_array(array($this, 'start_lvl'), $cb_args);
				}
				$this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output );
			}
			unset( $children_elements[ $id ] );
		}

		if ( isset($newlevel) && $newlevel ){
			//end the child delimiter
			$cb_args = array_merge( array(&$output, $depth), $args);
			call_user_func_array(array($this, 'end_lvl'), $cb_args);
		}

		//end this element
		$cb_args = array_merge( array(&$output, $element, $depth), $args);
		call_user_func_array(array($this, 'end_el'), $cb_args);
	}
}
function appointment_nav_menu_css_class1( $classes ) {
	if ( in_array('current-menu-item', $classes ) OR in_array( 'current-menu-ancestor', $classes ) )
		$classes[]	=	'active';

	return $classes;
}
add_filter( 'nav_menu_css_class', 'appointment_nav_menu_css_class1' );