lightspeeddevelopment/lsx-customizer

<?php
/**
 * LSX Sensei Lesson Class
 *
 * @package    lsx
 * @subpackage sensei
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly.
}

/**
 * LSX Sensei Lesson Class
 */
class LSX_Sensei_Lesson {

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

    /**
     * Constructor.
     */
    public function __construct() {
        add_action( 'init', array( $this, 'init' ) );
        add_action( 'widgets_init', array( $this, 'lsx_widget_area_sensei_init' ), 100 );
        add_filter( 'body_class', array( $this, 'lsx_widget_area_sensei_is_active' ) );
    } // End __construct()

    /**
     * Fetches an instance of the class.
     *
     * @return self
     */
    public static function instance() {
        if ( ! self::$instance ) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    /**
     * Run our changes.
     */
    public function init() {
        add_action( 'lsx_content_top', array( $this, 'lsx_sensei_lesson_sidebar' ) );

    }

    /**
     * Register a sidebar when Sensei Participants or Sensei Progress plugins are active.
     *
     * @return void
     */
    public function lsx_widget_area_sensei_init() {
        if ( class_exists( 'Sensei_Course_Participants' ) || class_exists( 'Sensei_Course_Progress' ) ) {
            register_sidebar( array(
                'name'          => esc_html__( 'LSX Sensei Sidebar', 'lsx' ),
                'id'            => 'lsx-sensei-sidebar',
                'before_widget' => '<aside id="%1$s" class="widget %2$s">',
                'after_widget'  => '</aside>',
                'before_title'  => '<h3 class="widget-title">',
                'after_title'   => '</h3>',
            ) );
        }
    }

    /**
     * Widget Area for sensei.
     *
     * @param [type] $classes
     * @return classes
     */
    public function lsx_widget_area_sensei_is_active( $classes ) {

        if ( class_exists( 'Sensei_Lesson' ) && is_active_sidebar( 'lsx-sensei-sidebar' ) ) {
            $classes[] = 'lsx-sensei-sidebar-active';
        }

        return $classes;
    }

    /**
     * Adds the widget content to the lesson template if the lsx-sensei-sidebar is active.
     *
     * @return void
     */
    public function lsx_sensei_lesson_sidebar() {
        if ( class_exists( 'Sensei_Lesson' ) && ( class_exists( 'Sensei_Course_Participants' ) || class_exists( 'Sensei_Course_Progress' ) ) ) {
            if ( ( is_single() && ( is_singular( 'lesson' ) ) ) || ( is_single() && ( is_singular( 'quiz' ) ) ) ) {
                if ( is_active_sidebar( 'lsx-sensei-sidebar' ) ) {
                    echo '<div id="secondary" class="widget-area lsx-sensei-sidebar">';
                    dynamic_sidebar( 'lsx-sensei-sidebar' );
                    echo '</div>';
                }
            }
        }
    }

} // End Class
$lsx_sensei_lesson = LSX_Sensei_Lesson::instance();