gocodebox/lifterlms

<?php
/**
 * LifterLMS Shortcodes Blocks
 *
 * @package LifterLMS/Classes/Shortcodes
 *
 * @since 7.2.0
 * @version 7.2.0
 */

defined( 'ABSPATH' ) || exit;

/**
 * LLMS_Shortcodes_Blocks class.
 *
 * @since 7.2.0
 */
class LLMS_Shortcodes_Blocks {

    /**
     * Instance of the class.
     *
     * @since 7.2.0
     *
     * @var self
     */
    private static $instance;

    /**
     * Get instance of the class.
     *
     * @since 7.2.0
     *
     * @return self
     */
    public static function instance(): LLMS_Shortcodes_Blocks {
        if ( ! isset( self::$instance ) ) {
            self::$instance = new LLMS_Shortcodes_Blocks();
        }
        return self::$instance;
    }

    /**
     * Constructor.
     *
     * @since 7.2.0
     *
     * @return void
     */
    public function __construct() {
        add_action( 'init', array( $this, 'register_blocks' ) );
        add_action( 'init', array( __CLASS__, 'add_editor_styles' ) );
        add_action( 'admin_enqueue_scripts', array( __CLASS__, 'enqueue_editor_styles' ) );
        add_filter( 'llms_hide_registration_form', array( $this, 'show_form_preview' ) );
        add_filter( 'llms_hide_login_form', array( $this, 'show_form_preview' ) );
    }

    /**
     * Available shortcode blocks.
     *
     * @since 7.2.0
     *
     * @return array
     */
    private function get_config(): array {
        $config = array(
            'access-plan-button'   => array(
                'render' => array( 'LLMS_Shortcodes', 'access_plan_button' ),
            ),
            'checkout'             => array(
                'render' => array( 'LLMS_Shortcodes', 'checkout' ),
            ),
            'courses'              => array(
                'render' => array( 'LLMS_Shortcode_Courses', 'output' ),
            ),
            'course-author'        => array(
                'render' => array( 'LLMS_Shortcode_Course_Author', 'output' ),
            ),
            'course-continue'      => array(
                'render' => array( 'LLMS_Shortcode_Course_Continue', 'output' ),
            ),
            'course-meta-info'     => array(
                'render' => array( 'LLMS_Shortcode_Course_Meta_Info', 'output' ),
            ),
            'course-outline'       => array(
                'render' => array( 'LLMS_Shortcode_Course_Outline', 'output' ),
            ),
            'course-prerequisites' => array(
                'render' => array( 'LLMS_Shortcode_Course_Prerequisites', 'output' ),
            ),
            'course-reviews'       => array(
                'render' => array( 'LLMS_Shortcode_Course_Reviews', 'output' ),
            ),
            'course-syllabus'      => array(
                'render' => array( 'LLMS_Shortcode_Course_Syllabus', 'output' ),
            ),
            'login'                => array(
                'render' => array( 'LLMS_Shortcodes', 'login' ),
            ),
            'memberships'          => array(
                'render' => array( 'LLMS_Shortcodes', 'memberships' ),
            ),
            'my-account'           => array(
                'render' => array( 'LLMS_Shortcodes', 'my_account' ),
            ),
            'my-achievements'      => array(
                'render' => array( 'LLMS_Shortcode_My_Achievements', 'output' ),
            ),
            'registration'         => array(
                'render' => array( 'LLMS_Shortcode_Registration', 'output' ),
            ),
        );

        /**
         * Filters shortcode blocks config.
         *
         * @since 7.2.0
         *
         * @param array $config Array of shortcode blocks.
         */
        return apply_filters( 'llms_shortcode_blocks', $config );
    }

    /**
     * Registers shortcode blocks.
     *
     * @since 7.2.0
     *
     * @return void
     */
    public function register_blocks(): void {
        $blocks = $this->get_config();

        foreach ( $blocks as $name => $args ) {
            $block_dir = $args['path'] ?? LLMS_PLUGIN_DIR . "blocks/$name";

            if ( file_exists( "$block_dir/block.json" ) ) {
                register_block_type(
                    $block_dir,
                    array(
                        'render_callback' => array( $this, 'render_block' ),
                    )
                );
            }
        }
    }

    /**
     * Loads front end CSS in the editor.
     *
     * @since 7.2.0
     *
     * @return void
     */
    public static function add_editor_styles(): void {
        $plugins_dir = basename( WP_PLUGIN_DIR );
        $plugin_dir  = basename( LLMS_PLUGIN_DIR );
        $rtl         = is_rtl() ? '-rtl' : '';
        $path        = "../../$plugins_dir/$plugin_dir/assets/css/lifterlms{$rtl}.min.css";

        add_editor_style( $path );
    }

    /**
     * Enqueues editor styles.
     *
     * @since 7.2.0
     *
     * @return void
     */
    public static function enqueue_editor_styles(): void {
        if ( ! llms_is_block_editor() ) {
            return;
        }

        $path = '/assets/css/editor.min.css';

        if ( ! file_exists( LLMS()->plugin_path() . $path ) ) {
            return;
        }

        wp_enqueue_style(
            'llms-editor',
            LLMS()->plugin_url() . $path,
            array(),
            filemtime( LLMS()->plugin_path() . $path )
        );
    }

    /**
     * Determines whether to show the registration and login form in editor preview.
     *
     * @since 7.2.0
     *
     * @param bool $hide Whether to hide the registration form.
     * @return bool
     */
    public function show_form_preview( bool $hide ): bool {
        if ( llms_is_editor_block_rendering() ) {
            $hide = false;
        }

        return $hide;
    }

    /**
     * Renders a shortcode block.
     *
     * @since 7.2.0
     *
     * @param array    $attributes The block attributes.
     * @param string   $content    The block default content.
     * @param WP_Block $block      The block instance.
     * @return string
     */
    public function render_block( array $attributes, string $content, WP_Block $block ): string {
        if ( ! property_exists( $block, 'name' ) ) {
            return '';
        }

        $name   = str_replace( 'llms/', '', $block->name );
        $config = $this->get_config();
        $render = $config[ $name ]['render'] ?? array();

        if ( method_exists( $render[0] ?? '', 'instance' ) ) {
            $render = array( $render[0]::instance(), $render[1] ?? '' );
        }

        if ( ! is_callable( $render ) ) {
            return '';
        }

        $text = $attributes['text'] ?? '';

        unset( $attributes['text'] );

        $args = array( $attributes );

        if ( $text ) {
            $args[] = $text;
        }

        $html = call_user_func( $render, ...$args );

        // This allows emptyResponsePlaceholder to be used when no content is returned.
        if ( ! $html ) {
            return '';
        }

        // Use emptyResponsePlaceholder for Courses block instead of shortcode message.
        if ( false !== strpos( $html, __( 'No products were found matching your selection.', 'lifterlms' ) ) ) {
            return '';
        }

        return sprintf(
            '<div %1$s>%2$s</div>',
            get_block_wrapper_attributes(),
            trim( $html )
        );
    }
}

return LLMS_Shortcodes_Blocks::instance();