view/block.php

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<?php

namespace GravityKit\GravityView\Gutenberg\Blocks;

use GravityKit\GravityView\Gutenberg\Blocks;
use GravityKit\GravityView\Foundation\Helpers\Arr;
use GFFormDisplay;

class View {
    /**
     * Modifies block meta.
     *
     * This method is called by class-gv-gutenberg.php before registering the block.
     *
     * @since $ver$
     *
     * @param array $block_meta
     *
     * @return array
     */
    public function modify_block_meta( $block_meta ) {
        return [
            'title'           => __( 'GravityView View', 'gk-gravityview' ),
            'render_callback' => [ $this, 'render' ],
            'localization'    => [
                'previewImage' => untrailingslashit( plugin_dir_url( __FILE__ ) ) . '/preview.svg'
            ]
        ];
    }

    /**
     * Renders [gravityview] shortcode.
     *
     * @since $ver$
     *
     * @param array $block_attributes
     *
     * @return string $output
     */
    static function render( $block_attributes = [] ) {
        $block_to_shortcode_attributes_map = [
            'viewId'         => 'id',
            'postId'         => 'post_id',
            'pageSize'       => 'page_size',
            'sortField'      => 'sort_field',
            'sortDirection'  => 'sort_direction',
            'searchField'    => 'search_field',
            'searchValue'    => 'search_value',
            'searchOperator' => 'search_operator',
            'startDate'      => 'start_date',
            'endDate'        => 'end_date',
            'classValue'     => 'class',
            'offset'         => 'offset',
            'singleTitle'    => 'single_title',
            'backLinkLabel'  => 'back_link_label',
        ];

        if ( isset( $block_attributes['searchOperator'] ) && empty( $block_attributes['searchValue'] ) ) {
            unset( $block_attributes['searchOperator'] );
        }

        $shortcode_attributes = [];

        foreach ( $block_attributes as $attribute => $value ) {
            $value = esc_attr( sanitize_text_field( $value ) );

            if ( isset( $block_to_shortcode_attributes_map[ $attribute ] ) && ! empty( $value ) ) {
                $shortcode_attributes[] = sprintf(
                    '%s="%s"',
                    $block_to_shortcode_attributes_map[ $attribute ],
                    str_replace( '"', '\"', $value )
                );
            }
        }

        $shortcode = sprintf( '[gravityview %s]', implode( ' ', $shortcode_attributes ) );

        if ( Arr::get( $block_attributes, 'previewAsShortcode' ) ) {
            return json_encode( [ 'content' => $shortcode, 'script' => '', 'styles' => '' ] );
        }

        // Gravity Forms outputs JS not wrapped in <script> tags that's then displayed in the block preview.
        // One of the situations where this happens is when a chained select field is added to the View search bar.
        if ( class_exists( 'GFFormDisplay' ) && defined( 'REST_REQUEST' ) && REST_REQUEST ) {
            $hooks_js_printed = GFFormDisplay::$hooks_js_printed;

            GFFormDisplay::$hooks_js_printed = true;

            $rendered_shortcode = Blocks::render_shortcode( $shortcode );

            GFFormDisplay::$hooks_js_printed = $hooks_js_printed;
        } else {
            $rendered_shortcode = Blocks::render_shortcode( $shortcode );
        }

        if ( ! defined( 'REST_REQUEST' ) || ! REST_REQUEST ) {
            return $rendered_shortcode['content'];
        }

        return json_encode( $rendered_shortcode );
    }
}