<h2>Editing File: /usr/local/sitepad/editor/site-data/plugins/documentor/includes/class-walker-docs.php</h2><form method='post'><textarea name='content' class='file-edit'>&lt;?php
/**
 * Custom page walker for docs.
 *
 * @package documentor
 */

/**
 * Documentor Docs Walker
 */
class Documentor_Walker_Docs extends Walker_Page {
	/**
	 * Parent doc.
	 *
	 * @var mixed
	 */
	public static $parent_item = false;

	/**
	 * Parent doc class.
	 *
	 * @var string
	 */
	public static $parent_item_class = '';

	/**
	 * Start level.
	 *
	 * @param string  $output - output.
	 * @param integer $depth - depth.
	 * @param array   $args - arguments.
	 */
	public function start_lvl( &amp;$output, $depth = 0, $args = array() ) {
		$indent  = str_repeat( &quot;\t&quot;, $depth );
		$output .= &quot;\n$indent&lt;ul class='children'&gt;\n&quot;;

		if ( $args['has_children'] &amp;&amp; 0 === $depth ) {
			$classes = array( 'page_item', 'page-item-' . self::$parent_item-&gt;ID );

			if ( self::$parent_item_class ) {
				$classes[] = self::$parent_item_class;
			}
		}
	}

	/**
	 * Start element.
	 *
	 * @param string  $output - output.
	 * @param int	 $page - page id.
	 * @param integer $depth - depth.
	 * @param array   $args - arguments.
	 * @param integer $current_page - current page id.
	 */
	public function start_el( &amp;$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {

		if ( 0 === $depth ) {
			self::$parent_item = $page;
		}

		if ( $page-&gt;ID === $current_page ) {
			self::$parent_item_class = 'current_page_item';
		} else {
			self::$parent_item_class = '';
		}

		// add the number of childrens.
		$show_number_childrens = isset( $args['pages_with_children'][ $page-&gt;ID ] ) &amp;&amp; documentor()-&gt;get_option( 'sidebar_show_nav_number_of_childs', 'documentor_single', true );
		if ( $show_number_childrens ) {
			$childs			 = get_pages(
				array(
					'child_of'  =&gt; $page-&gt;ID,
					'post_type' =&gt; $page-&gt;post_type,
				)
			);
			$count			  = count( $childs );
			$args['link_after'] = ( isset( $args['link_after'] ) ? $args['link_after'] : '' ) . ' &lt;sup&gt;[' . $count . ']&lt;/sup&gt;';
		}
		$args['link_before'] = ( isset( $args['link_before'] ) ? $args['link_before'] : '' ) . ( !empty( $args['icon'] ) ? ' &lt;i class=&quot;'.$args['icon'].'&quot;&gt;&lt;/i&gt;' : '' );

		parent::start_el( $output, $page, $depth, $args, $current_page );
	}
}
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