ElementorWoo Class # 5 | Plugin index.php

<?php
/**
 * Plugin Name: RRF Commerce Elementor
 * Description: Custom Elementor extension for RRF Commerce Theme.
 * Plugin URI:  https://anything.com/
 * Version:     1.0.0
 * Author:      Rasel Ahmed
 * Author URI:  https://anythingauthor.com/
 * Text Domain: rrfcommerce-elementor
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

final class RRF_Commerce_Extension {

    const VERSION = '1.0.0';
    const MINIMUM_ELEMENTOR_VERSION = '2.0.0';
    const MINIMUM_PHP_VERSION = '5.6';
    private static $_instance = null;
    public static function instance() {

        if ( is_null( self::$_instance ) ) {
            self::$_instance = new self();
        }
        return self::$_instance;

    }

    public function __construct() {
        add_action( 'init', [ $this, 'i18n' ] );
        add_action( 'plugins_loaded', [ $this, 'init' ] );
    }

    public function i18n() {
        load_plugin_textdomain( 'rrfcommerce-elementor' );
    }

    public function init() {
        if ( ! did_action( 'elementor/loaded' ) ) {
            add_action( 'admin_notices', [ $this, 'admin_notice_missing_main_plugin' ] );
            return;
        }

        if ( ! version_compare( ELEMENTOR_VERSION, self::MINIMUM_ELEMENTOR_VERSION, '>=' ) ) {
            add_action( 'admin_notices', [ $this, 'admin_notice_minimum_elementor_version' ] );
            return;
        }

        if ( version_compare( PHP_VERSION, self::MINIMUM_PHP_VERSION, '<' ) ) {
            add_action( 'admin_notices', [ $this, 'admin_notice_minimum_php_version' ] );
            return;
        }

        add_action( 'elementor/widgets/widgets_registered', [ $this, 'init_widgets' ] );
        add_action( 'elementor/frontend/after_enqueue_styles', [ $this, 'widget_styles' ] );
    }


    public function admin_notice_missing_main_plugin() {

        if ( isset( $_GET['activate'] ) ) unset( $_GET['activate'] );

        $message = sprintf(
            esc_html__( '"%1$s" requires "%2$s" to be installed and activated.', 'rrfcommerce-elementor' ),
            '<strong>' . esc_html__( 'Elementor Test Extension', 'rrfcommerce-elementor' ) . '</strong>',
            '<strong>' . esc_html__( 'Elementor', 'rrfcommerce-elementor' ) . '</strong>'
        );

        printf( '<div class="notice notice-warning is-dismissible"><p>%1$s</p></div>', $message );

    }

    public function admin_notice_minimum_elementor_version() {

        if ( isset( $_GET['activate'] ) ) unset( $_GET['activate'] );

        $message = sprintf(
            esc_html__( '"%1$s" requires "%2$s" version %3$s or greater.', 'rrfcommerce-elementor' ),
            '<strong>' . esc_html__( 'Elementor Test Extension', 'rrfcommerce-elementor' ) . '</strong>',
            '<strong>' . esc_html__( 'Elementor', 'rrfcommerce-elementor' ) . '</strong>',
             self::MINIMUM_ELEMENTOR_VERSION
        );

        printf( '<div class="notice notice-warning is-dismissible"><p>%1$s</p></div>', $message );

    }

    public function admin_notice_minimum_php_version() {

        if ( isset( $_GET['activate'] ) ) unset( $_GET['activate'] );

        $message = sprintf(
            esc_html__( '"%1$s" requires "%2$s" version %3$s or greater.', 'rrfcommerce-elementor' ),
            '<strong>' . esc_html__( 'Elementor Test Extension', 'rrfcommerce-elementor' ) . '</strong>',
            '<strong>' . esc_html__( 'PHP', 'rrfcommerce-elementor' ) . '</strong>',
             self::MINIMUM_PHP_VERSION
        );

        printf( '<div class="notice notice-warning is-dismissible"><p>%1$s</p></div>', $message );

    }

    public function init_widgets() {

        require_once( __DIR__ . '/widgets/slider.php' );
        require_once( __DIR__ . '/widgets/content-block.php' );

        \Elementor\Plugin::instance()->widgets_manager->register_widget_type( new \RRFCommerce_Slider_Widget() );
        \Elementor\Plugin::instance()->widgets_manager->register_widget_type( new \RRFCommerce_ContentBlock_Widget() );

    }

    public function widget_styles() {

        wp_enqueue_style( 'rrfcommerce-slider', plugins_url( 'widgets/css/slider.css', __FILE__ ) );
        wp_enqueue_style( 'rrfcommerce-content-block', plugins_url( 'widgets/css/content-box.css', __FILE__ ) );

    }

}

RRF_Commerce_Extension::instance();

function rrf_commerce_plugin_scripts() {
    wp_enqueue_style( 'slick', plugins_url( 'assets/css/slick.css', __FILE__ ) );

    wp_enqueue_script( 'slick', plugins_url( 'assets/js/slick.min.js', __FILE__ ), array('jquery'), '20151215', true );
}
add_action( 'wp_enqueue_scripts', 'rrf_commerce_plugin_scripts' );