Categories

/** * WC_Product_Cat_List_Walker class * * @package WooCommerce\Classes\Walkers * @version 3.4.0 */ defined( 'ABSPATH' ) || exit; if ( class_exists( 'WC_Product_Cat_List_Walker', false ) ) { return; } /** * Product cat list walker class. */ class WC_Product_Cat_List_Walker extends Walker { /** * What the class handles. * * @var string */ public $tree_type = 'product_cat'; /** * DB fields to use. * * @var array */ public $db_fields = array( 'parent' => 'parent', 'id' => 'term_id', 'slug' => 'slug', ); /** * Starts the list before the elements are added. * * @see Walker::start_lvl() * @since 2.1.0 * * @param string $output Passed by reference. Used to append additional content. * @param int $depth Depth of category. Used for tab indentation. * @param array $args Will only append content if style argument value is 'list'. */ public function start_lvl( &$output, $depth = 0, $args = array() ) { if ( 'list' !== $args['style'] ) { return; } $indent = str_repeat( "\t", $depth ); $output .= "$indent
    \n"; } /** * Ends the list of after the elements are added. * * @see Walker::end_lvl() * @since 2.1.0 * * @param string $output Passed by reference. Used to append additional content. * @param int $depth Depth of category. Used for tab indentation. * @param array $args Will only append content if style argument value is 'list'. */ public function end_lvl( &$output, $depth = 0, $args = array() ) { if ( 'list' !== $args['style'] ) { return; } $indent = str_repeat( "\t", $depth ); $output .= "$indent
\n"; } /** * Start the element output. * * @see Walker::start_el() * @since 2.1.0 * * @param string $output Passed by reference. Used to append additional content. * @param object $cat Category. * @param int $depth Depth of category in reference to parents. * @param array $args Arguments. * @param integer $current_object_id Current object ID. */ public function start_el( &$output, $cat, $depth = 0, $args = array(), $current_object_id = 0 ) { $cat_id = intval( $cat->term_id ); $output .= '
  • ' . apply_filters( 'list_product_cats', $cat->name, $cat ) . ''; if ( $args['show_count'] ) { $output .= ' (' . $cat->count . ')'; } } /** * Ends the element output, if needed. * * @see Walker::end_el() * @since 2.1.0 * * @param string $output Passed by reference. Used to append additional content. * @param object $cat Category. * @param int $depth Depth of category. Not used. * @param array $args Only uses 'list' for whether should append to output. */ public function end_el( &$output, $cat, $depth = 0, $args = array() ) { $output .= "
    • \n"; } /** * 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. It is possible to set the. * max depth to include all depths, see walk() method. * * This method shouldn't be called directly, use the walk() method instead. * * @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 Arguments. * @param string $output Passed by reference. Used to append additional content. * @return null Null on failure with no changes to parameters. */ public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { if ( ! $element || ( 0 === $element->count && ! empty( $args[0]['hide_empty'] ) ) ) { return; } parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); } }