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' . 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 );
}
}
- \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