container-block.php

<?php
/**
 * The `Container Block` bootstrap file.
 *
 * This file is read by WordPress to generate the plugin information in the plugin
 * admin area. This file also includes all of the dependencies used by the plugin,
 * registers the activation and deactivation functions, and defines a function
 * that starts the plugin.
 *
 * Container Block is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * @link                    https://www.mypreview.one
 * @since                   1.2.0
 * @package                 container-block
 * @author                  MyPreview (Github: @mahdiyazdani, @mypreview)
 * @copyright               © 2015 - 2020 MyPreview. All Rights Reserved.
 *
 * @wordpress-plugin
 * Plugin Name:             Container Block
 * Plugin URI:              https://www.mypreview.one
 * Description:             A fully customizable Gutenberg editor block used for wrapping several blocks in a parent wrapper.
 * Version:                 1.2.0
 * Author:                  MyPreview
 * Author URI:              https://www.upwork.com/o/profiles/users/_~016ad17ad3fc5cce94
 * License:                 GPL-3.0
 * License URI:             http://www.gnu.org/licenses/gpl-3.0.txt
 * Text Domain:             container-block
 * Domain Path:             /languages
 */

// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
    wp_die();
} // End If Statement

/**
 * Gets the path to a plugin file or directory.
 *
 * @see     https://codex.wordpress.org/Function_Reference/plugin_basename
 * @see     http://php.net/manual/en/language.constants.predefined.php
 */
$container_block_plugin_data = get_file_data(
    __FILE__,
    array(
        'author_uri' => 'Author URI',
        'version'    => 'Version',
    ),
    'plugin'
);
define( 'CONTAINER_BLOCK_VERSION', $container_block_plugin_data['version'] );
define( 'CONTAINER_BLOCK_AUTHOR_URI', $container_block_plugin_data['author_uri'] );
define( 'CONTAINER_BLOCK_SLUG', 'container-block' );
define( 'CONTAINER_BLOCK_FILE', __FILE__ );
define( 'CONTAINER_BLOCK_BASENAME', basename( CONTAINER_BLOCK_FILE ) );
define( 'CONTAINER_BLOCK_PLUGIN_BASENAME', plugin_basename( CONTAINER_BLOCK_FILE ) );
define( 'CONTAINER_BLOCK_DIR_URL', plugin_dir_url( CONTAINER_BLOCK_FILE ) );
define( 'CONTAINER_BLOCK_DIR_PATH', plugin_dir_path( CONTAINER_BLOCK_FILE ) );

if ( ! class_exists( 'Container_Block' ) ) :

    /**
     * The Container Block - Class
     */
    final class Container_Block {

        /**
         * Instance of the class.
         *
         * @var  object   $instance
         */
        private static $instance = null;

        /**
         * Main `Container_Block` instance
         * Ensures only one instance of `Container_Block` is loaded or can be loaded.
         *
         * @access  public
         * @return  instance
         */
        public static function instance() {

            if ( is_null( self::$instance ) ) {
                self::$instance = new self();
            } // End If Statement

            return self::$instance;

        }

        /**
         * Setup class.
         *
         * @access  protected
         * @return  void
         */
        protected function __construct() {

            add_action( 'init', array( $this, 'textdomain' ), 10 );
            add_action( 'wp_enqueue_scripts', array( $this, 'enqueue' ), 10 );
            add_action( 'enqueue_block_editor_assets', array( $this, 'editor_enqueue' ), 10 );
            add_filter( sprintf( 'plugin_action_links_%s', CONTAINER_BLOCK_PLUGIN_BASENAME ), array( $this, 'additional_links' ), 10, 1 );

        }

        /**
         * Cloning instances of this class is forbidden.
         *
         * @access  protected
         * @return  void
         */
        protected function __clone() {

            _doing_it_wrong( __FUNCTION__, esc_html_x( 'Cloning instances of this class is forbidden.', 'clone', 'container-block' ), esc_html( CONTAINER_BLOCK_VERSION ) );

        }

        /**
         * Unserializing instances of this class is forbidden.
         *
         * @access  public
         * @return  void
         */
        public function __wakeup() {

            _doing_it_wrong( __FUNCTION__, esc_html_x( 'Unserializing instances of this class is forbidden.', 'wakeup', 'container-block' ), esc_html( CONTAINER_BLOCK_VERSION ) );

        }

        /**
         * Load languages file and text domains.
         * Define the internationalization functionality.
         *
         * @access  public
         * @return  void
         */
        public function textdomain() {

            load_plugin_textdomain( 'container-block', false, dirname( dirname( CONTAINER_BLOCK_PLUGIN_BASENAME ) ) . '/languages/' );

        }

        /**
         * Register the stylesheets and JavaScript for the public-facing side of the site.
         *
         * @access   public
         * @return   void
         */
        public function enqueue() {

            global $post;

            // Determine whether the current `$post` contains this block type.
            if ( ! has_block( 'mypreview/container', (object) $post ) ) {
                return;
            } // End If Statement

            // Enqueue the CSS stylesheet.
            wp_enqueue_style( CONTAINER_BLOCK_SLUG, sprintf( '%sassets/dist/public/style.css', CONTAINER_BLOCK_DIR_URL ), array(), CONTAINER_BLOCK_VERSION, 'screen' );
            // Add metadata to the CSS stylesheet.
            wp_style_add_data( CONTAINER_BLOCK_SLUG, 'rtl', 'replace' );

            $script_path       = sprintf( '%sassets/dist/public/script.js', CONTAINER_BLOCK_DIR_PATH );
            $script_asset_path = sprintf( '%sassets/dist/public/script.asset.php', CONTAINER_BLOCK_DIR_PATH );
            $script_asset      = file_exists( $script_asset_path ) ? require $script_asset_path : array(
                'dependencies' => array( 'jquery' ),
                'version'      => filemtime( $script_path ),
            );
            $script_url        = sprintf( '%sassets/dist/public/script.js', CONTAINER_BLOCK_DIR_URL );
            // Enqueue the script.
            wp_enqueue_script( CONTAINER_BLOCK_SLUG, $script_url, $script_asset['dependencies'], $script_asset['version'], true );

        }

        /**
         * Register the stylesheets and JavaScript for the Gutenberg (editor) side of the site.
         *
         * @access   public
         * @return   void
         */
        public function editor_enqueue() {

            // Enqueue the CSS stylesheet.
            wp_enqueue_style( CONTAINER_BLOCK_SLUG, sprintf( '%sassets/dist/admin/style.css', CONTAINER_BLOCK_DIR_URL ), array( 'wp-edit-blocks' ), CONTAINER_BLOCK_VERSION, 'screen' );
            // Add metadata to the CSS stylesheet.
            wp_style_add_data( CONTAINER_BLOCK_SLUG, 'rtl', 'replace' );

            $script_path       = sprintf( '%sassets/dist/admin/script.js', CONTAINER_BLOCK_DIR_PATH );
            $script_asset_path = sprintf( '%sassets/dist/admin/script.asset.php', CONTAINER_BLOCK_DIR_PATH );
            $script_asset      = file_exists( $script_asset_path ) ? require $script_asset_path : array(
                'dependencies' => array( 'wp-blocks', 'wp-dom-ready' ),
                'version'      => filemtime( $script_path ),
            );
            $script_url        = sprintf( '%sassets/dist/admin/script.js', CONTAINER_BLOCK_DIR_URL );
            // Enqueue the script.
            wp_enqueue_script( CONTAINER_BLOCK_SLUG, $script_url, $script_asset['dependencies'], $script_asset['version'], true );

        }

        /**
         * Display additional links in plugins table page.
         * Filters the list of action links displayed for a specific plugin in the Plugins list table.
         *
         * @access  public
         * @param   array $links      An array of plugin action links.
         * @return  array   $links
         */
        public function additional_links( $links ) {

            $plugin_links = array();
            /* translators: 1: Open anchor tag, 2: Close anchor tag. */
            $plugin_links[] = sprintf( _x( '%1$sHire Me!%2$s', 'plugin link', 'container-block' ), sprintf( '<a href="%s" class="button-link-delete" target="_blank" rel="noopener noreferrer nofollow" title="%s">', esc_url( CONTAINER_BLOCK_AUTHOR_URI ), esc_attr_x( 'Looking for help? Hire Me!', 'upsell', 'container-block' ) ), '</a>' );
            /* translators: 1: Open anchor tag, 2: Close anchor tag. */
            $plugin_links[] = sprintf( _x( '%1$sSupport%2$s', 'plugin link', 'container-block' ), sprintf( '<a href="https://wordpress.org/support/plugin/%s" target="_blank" rel="noopener noreferrer nofollow">', CONTAINER_BLOCK_SLUG ), '</a>' );

            return array_merge( $plugin_links, $links );

        }

    }
endif;

if ( ! function_exists( 'container_block_init' ) ) :

    /**
     * Returns the main instance of Container_Block to prevent the need to use globals.
     *
     * @return  object(class)   Container_Block::instance
     */
    function container_block_init() {

        return Container_Block::instance();

    }

    container_block_init();
endif;