Exposing Element Controls for New Conditions

I have been running this to use Element Controls for display conditions. Has worked well for years.

// Generate custom taxonomy for Element Display Rules
function element_control_custom_tax() {
    register_taxonomy(
        'element-controls',
        array( 'page' ),
        array(
            'label' => __( 'Element Controls' ),
            'rewrite' => array( 'slug' => 'element-controls' ),
            'hierarchical' => true,
            'show_in_rest' => true,
        )
    );
}

add_action( 'init', 'element_control_custom_tax' );

Noticed that this is not exposed in the new conditions.

This snippet works but I would feel more comfortable getting someone with deeper knowledge of GP + GB to take a look. Can someone make this fit the newer GP environment and update it to give prepopulated dropdowns like in Elements? Don’t want to break anything either:

/**
 * Expose 'element-controls' taxonomy as a GenerateBlocks Pro Condition.
 * Requires GenerateBlocks Pro 2.3+
 */

// -------------------------------------------------------
// 1. Condition Class
// -------------------------------------------------------
if ( class_exists( 'GenerateBlocks_Pro_Condition_Abstract' ) ) {

    class Element_Controls_Condition extends GenerateBlocks_Pro_Condition_Abstract {

        public function evaluate( $rule, $operator, $value, $context = [] ) {
            $post_id = $context['post_id'] ?? get_the_ID();

            if ( ! $post_id ) {
                return false;
            }

            // Get all term slugs assigned to this post for our taxonomy
            $terms = get_the_terms( $post_id, 'element-controls' );

            if ( is_wp_error( $terms ) || empty( $terms ) ) {
                $assigned = [];
            } else {
                $assigned = wp_list_pluck( $terms, 'slug' );
            }

            // $value can be a single slug or array of slugs
            $check = is_array( $value ) ? $value : [ $value ];

            $has_match = ! empty( array_intersect( $assigned, $check ) );

            switch ( $operator ) {
                case 'is':
                    return $has_match;
                case 'is_not':
                    return ! $has_match;
                default:
                    return false;
            }
        }

        public function get_rules() {
            return [
                'has_term' => __( 'Has Element Control Term', 'your-textdomain' ),
            ];
        }

        public function get_rule_metadata( $rule ) {
            return [
                'needs_value'    => true,
                'value_type'     => 'search', // triggers the search UI
                'supports_multi' => true,
                'search_route'   => 'generateblocks-pro/advanced-conditions/v1/search_element_controls',
            ];
        }

        public function sanitize_value( $value, $rule ) {
            if ( is_array( $value ) ) {
                return array_map( 'sanitize_text_field', $value );
            }
            return sanitize_text_field( $value );
        }
    }

}

// -------------------------------------------------------
// 2. Register the Condition
// -------------------------------------------------------
add_action( 'generateblocks_register_conditions', function() {
    if ( ! class_exists( 'GenerateBlocks_Pro_Conditions_Registry' ) ) {
        return;
    }

    GenerateBlocks_Pro_Conditions_Registry::register(
        'element_controls',
        [
            'label'     => __( 'Element Controls', 'your-textdomain' ),
            'operators' => [ 'is', 'is_not' ],
        ],
        'Element_Controls_Condition'
    );
} );

// -------------------------------------------------------
// 3. REST Endpoint for term search (powers the Conditions UI)
// -------------------------------------------------------
add_action( 'rest_api_init', function() {
    register_rest_route(
        'generateblocks-pro/advanced-conditions/v1',
        '/search_element_controls/',
        [
            'methods'             => 'GET',
            'callback'            => 'element_controls_condition_search',
            'permission_callback' => function() {
                return current_user_can( 'edit_posts' );
            },
            'args' => [
                'search' => [
                    'required'          => false,
                    'type'              => 'string',
                    'sanitize_callback' => 'sanitize_text_field',
                ],
            ],
        ]
    );
} );

function element_controls_condition_search( WP_REST_Request $request ) {
    $search = $request->get_param( 'search' );

    $terms = get_terms( [
        'taxonomy'   => 'element-controls',
        'hide_empty' => false,
        'search'     => $search,
        'number'     => 20,
    ] );

    if ( is_wp_error( $terms ) ) {
        return new WP_REST_Response( [ 'success' => false, 'response' => [] ], 200 );
    }

    $results = array_map( function( $term ) {
        return [
            'value' => $term->slug,
            'label' => $term->name,
        ];
    }, $terms );

    return new WP_REST_Response( [ 'success' => true, 'response' => $results ], 200 );
}