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<?php
namespace Elementor\Modules\AtomicWidgets\PropsResolver;
use Elementor\Modules\AtomicWidgets\PropTypes\Base\Array_Prop_Type;
use Elementor\Modules\AtomicWidgets\PropTypes\Base\Object_Prop_Type;
use Elementor\Modules\AtomicWidgets\PropTypes\Contracts\Prop_Type;
use Elementor\Modules\AtomicWidgets\PropTypes\Union_Prop_Type;
use Exception;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
class Props_Resolver {
/**
* Each transformer can return a value that is also a transformable value,
* which means that it can be transformed again by another transformer.
* This constant defines the maximum depth of transformations to avoid infinite loops.
*/
const TRANSFORM_DEPTH_LIMIT = 3;
const CONTEXT_SETTINGS = 'settings';
const CONTEXT_STYLES = 'styles';
/**
* @var array<string, Props_Resolver>
*/
private static array $instances = [];
private Transformers_Registry $transformers;
private function __construct( Transformers_Registry $transformers ) {
$this->transformers = $transformers;
}
public static function for_styles(): self {
return self::instance( self::CONTEXT_STYLES );
}
public static function for_settings(): self {
return self::instance( self::CONTEXT_SETTINGS );
}
private static function instance( string $context ): self {
if ( ! isset( self::$instances[ $context ] ) ) {
$registry = new Transformers_Registry();
do_action( "elementor/atomic-widgets/$context/transformers/register", $registry );
self::$instances[ $context ] = new self( $registry );
}
return self::$instances[ $context ];
}
public static function reset(): void {
self::$instances = [];
}
public function resolve( array $schema, array $props ): array {
$resolved = [];
foreach ( $schema as $key => $prop_type ) {
if ( ! ( $prop_type instanceof Prop_Type ) ) {
continue;
}
$resolved[ $key ] = $props[ $key ] ?? $prop_type->get_default();
}
return $this->assign_values( $resolved, $schema );
}
private function transform( $value, $key, Prop_Type $prop_type, int $depth = 0 ) {
if ( ! $value || ! $this->is_transformable( $value ) ) {
return $value;
}
if ( $depth >= self::TRANSFORM_DEPTH_LIMIT ) {
return null;
}
if ( isset( $value['disabled'] ) && true === $value['disabled'] ) {
return null;
}
if ( $prop_type instanceof Union_Prop_Type ) {
$prop_type = $prop_type->get_prop_type( $value['$$type'] );
if ( ! $prop_type ) {
return null;
}
}
if ( $prop_type instanceof Object_Prop_Type ) {
if ( ! is_array( $value['value'] ) ) {
return null;
}
$value['value'] = $this->resolve(
$prop_type->get_shape(),
$value['value']
);
}
if ( $prop_type instanceof Array_Prop_Type ) {
if ( ! is_array( $value['value'] ) ) {
return null;
}
$value['value'] = $this->assign_values(
$value['value'],
$prop_type->get_item_type()
);
}
$transformer = $this->transformers->get( $value['$$type'] );
if ( ! ( $transformer instanceof Transformer_Base ) ) {
return null;
}
try {
$transformed_value = $transformer->transform( $value['value'], $key );
return $this->transform( $transformed_value, $key, $prop_type, $depth + 1 );
} catch ( Exception $e ) {
return null;
}
}
private function is_transformable( $value ): bool {
return (
! empty( $value['$$type'] ) &&
array_key_exists( 'value', $value )
);
}
private function assign_values( $values, $schema ) {
$assigned = [];
foreach ( $values as $key => $value ) {
$prop_type = $schema instanceof Prop_Type ? $schema : $schema[ $key ];
$transformed = $this->transform( $value, $key, $prop_type );
if ( Multi_Props::is( $transformed ) ) {
$assigned = array_merge( $assigned, Multi_Props::get_value( $transformed ) );
continue;
}
$assigned[ $key ] = $transformed;
}
return $assigned;
}
}
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