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<?php
namespace WPForms\Forms;
/**
* Class Loader gives ability to track/load all forms modules.
*
* @since 1.5.1
*/
class Loader {
/**
* Get the instance of a class and store it in itself.
*
* @since 1.5.1
*/
public static function get_instance() {
static $instance;
if ( ! $instance ) {
$instance = new self();
}
return $instance;
}
/**
* Loader constructor.
*
* @since 1.5.1
*/
public function __construct() {
$core_class_names = array(
'Preview',
);
$class_names = \apply_filters( 'wpforms_forms_classes_available', $core_class_names );
foreach ( $class_names as $class_name ) {
$this->register_class( $class_name );
}
}
/**
* Register a new class.
*
* @since 1.5.1
*
* @param string $class_name Class name to register.
*/
public function register_class( $class_name ) {
$class_name = \sanitize_text_field( $class_name );
// Load Lite class if exists.
if ( ! \wpforms()->pro && \class_exists( 'WPForms\Lite\Forms\\' . $class_name ) ) {
$class_name = 'WPForms\Lite\Forms\\' . $class_name;
new $class_name();
return;
}
// Load Pro class if exists.
if ( \wpforms()->pro && \class_exists( 'WPForms\Pro\Forms\\' . $class_name ) ) {
$class_name = 'WPForms\Pro\Forms\\' . $class_name;
new $class_name();
return;
}
// Load general class if neither Pro nor Lite class exists.
if ( \class_exists( __NAMESPACE__ . '\\' . $class_name ) ) {
$class_name = __NAMESPACE__ . '\\' . $class_name;
new $class_name();
}
}
}
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