<?php
/*
Theme Designed By: S O R O U S H M A R K E T
Email: info@soroushmarket.ir
Demo Website: soroushmarket.ir
Author Website: soroushmarket.ir
*/
   /**
    * Class Name: wp_bootstrap_navwalker
    * GitHub URI: https://github.com/twittem/wp-bootstrap-navwalker
    * Description: A custom WordPress nav walker class to implement the Twitter Bootstrap 2.3.2 navigation style in a custom theme using the WordPress built in menu manager.
    * Version: 1.4.5
    * Author: Edward McIntyre - @twittem
    * License: GPL-2.0+
    * License URI: http://www.gnu.org/licenses/gpl-2.0.txt
    */
   
   class wp_bootstrap_navwalker extends Walker_Nav_Menu {
     
   	/**
   	 * @see Walker::start_lvl()
   	 * @since 3.0.0
   	 *
   	 * @param string $output Passed by reference. Used to append additional content.
   	 * @param int $depth Depth of page. Used for padding.
   	 */
   	function start_lvl( &$output, $depth = 0, $args = array() ) {
   		$indent = str_repeat("\t", $depth);
   		$output .= "\n$indent<ul class=\" dropdown-menu\">\n";
   	}
   
   	/**
   	 * @see Walker::start_el()
   	 * @since 3.0.0
   	 *
   	 * @param string $output Passed by reference. Used to append additional content.
   	 * @param object $item Menu item data object.
   	 * @param int $depth Depth of menu item. Used for padding.
   	 * @param int $current_page Menu item ID.
   	 * @param object $args
   	 */
   
   	function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
   		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
   
   		/**
   		 * Dividers & Headers
   	     * ==================
   		 * Determine whether the item is a Divider, Header, or regular menu item.
   		 * To prevent errors we use the strcasecmp() function to so a comparison
   		 * that is not case sensitive. The strcasecmp() function returns a 0 if 
   		 * the strings are equal.
   		 */
   		if (strcasecmp($item->title, 'divider') == 0) {
   			// Item is a Divider
   			$output .= $indent . '<li class="divider">';
   		} else if (strcasecmp($item->title, 'divider-vertical') == 0) {
   			// Item is a Vertical Divider
   			$output .= $indent . '<li class="divider-vertical">';
   		} else if (strcasecmp($item->title, 'nav-header') == 0) {
   			// Item is a Header
   			$output .= $indent . '<li class="nav-header">' . esc_attr( $item->attr_title );
   		} else {
   
   			$class_names = $value = '';
   
   			$classes = empty( $item->classes ) ? array() : (array) $item->classes;
   			$classes[] = 'menu-item-' . $item->ID;
   
   			$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
   			
   			//If item has_children add dropdown class to li
   			if($args->has_children) {
   				$class_names .= ' dropdown';
   			}
   
   			$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 .'>';
   
   			$atts = array();
   			$atts['data-title']  = ! empty( $item->title ) 	   ? $item->title 	   : '';
   			$atts['target'] = ! empty( $item->target )     ? $item->target     : '';
   			$atts['rel']    = ! empty( $item->xfn )        ? $item->xfn        : '';
   
   			//If item has_children add atts to a
   			if($args->has_children) {
   				$atts['href']   		= '#';
   				$atts['class']			= 'dropdown-toggle';
   				$atts['data-toggle'] = 'dropdown';
   				$atts['data-target'] = '#';
   			} else {
   				$atts['href'] = ! empty( $item->url ) ? $item->url : '';
   			}
   
   			$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args );
   
   			$attributes = '';
   			foreach ( $atts as $attr => $value ) {
   				if ( ! empty( $value ) ) {
   					$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
   					$attributes .= ' ' . $attr . '="' . $value . '"';
   				}
   			}
   
   			$item_output = $args->before;
   		
   			/*
   			 * Glyphicons
   			 * ===========
   			 * Since the the menu item is NOT a Divider or Header we check the see
   			 * if there is a value in the attr_title property. If the attr_title
   			 * property is NOT null we apply it as the class name for the glyphicon.
   			 */
   
   			if(! empty( $item->attr_title )){
   				$item_output .= '<a'. $attributes .'><i class="' . esc_attr( $item->attr_title ) . '"></i>&nbsp;';
   			} else {
   				$item_output .= '<a'. $attributes .'>';
   			}
   			$item_icon = '<i class="fa '.$item->icon.'"></i>';
   			$item_output .= $item_icon . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
   			$item_output .= ($args->has_children) ? ' <span class="caret"></span></a>' : '</a>';
   			$item_output .= $args->after;
   
   			$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
   		}
   	}
   
   	/**
   	 * Traverse elements to create list from elements.
   	 *
   	 * Display one element if the element doesn't have any children otherwise,
   	 * display the element and its children. Will only traverse up to the max
   	 * depth and no ignore elements under that depth. 
   	 *
   	 * This method shouldn't be called directly, use the walk() method instead.
   	 *
   	 * @see Walker::start_el()
   	 * @since 2.5.0
   	 *
   	 * @param object $element Data object
   	 * @param array $children_elements List of elements to continue traversing.
   	 * @param int $max_depth Max depth to traverse.
   	 * @param int $depth Depth of current element.
   	 * @param array $args
   	 * @param string $output Passed by reference. Used to append additional content.
   	 * @return null Null on failure with no changes to parameters.
   	 */
   
   	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_object( $args[0] ) ) {
              $args[0]->has_children = ! empty( $children_elements[$element->$id_field] );
           }
   
           parent::display_element($element, $children_elements, $max_depth, $depth, $args, $output);
       }
   }
   	
   ?>