WP_Interactivity_API::data_wp_context_processor( WP_Interactivity_API_Directives_Processor $p, string $mode, array $context_stack, array $namespace_stack )

In this article

This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

Processes the data-wp-context directive.

Description

It adds the context defined in the directive value to the stack so that it’s available for the nested interactivity elements.

Parameters

$pWP_Interactivity_API_Directives_Processorrequired
The directives processor instance.
$modestringrequired
Whether the processing is entering or exiting the tag.
$context_stackarrayrequired
The reference to the context stack.
$namespace_stackarrayrequired
The reference to the store namespace stack.

Source

// Extracts the value from the store using the reference path.
$path_segments = explode( '.', $path );
$current       = $store;
foreach ( $path_segments as $path_segment ) {
	if ( ( is_array( $current ) || $current instanceof ArrayAccess ) && isset( $current[ $path_segment ] ) ) {
		$current = $current[ $path_segment ];
	} elseif ( is_object( $current ) && isset( $current->$path_segment ) ) {
		$current = $current->$path_segment;
	} else {
		return null;
	}

	if ( $current instanceof Closure ) {
		/*
		 * This state getter's namespace is added to the stack so that
		 * `state()` or `get_config()` read that namespace when called
		 * without specifying one.
		 */
		array_push( $this->namespace_stack, $ns );
		try {
			$current = $current();
		} catch ( Throwable $e ) {
			_doing_it_wrong(
				__METHOD__,
				sprintf(
					/* translators: 1: Path pointing to an Interactivity API state property, 2: Namespace for an Interactivity API store. */
					__( 'Uncaught error executing a derived state callback with path "%1$s" and namespace "%2$s".' ),
					$path,
					$ns
				),
				'6.6.0'
			);
			return null;

Changelog

VersionDescription
6.5.0Introduced.

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