<?php
/*
 * Plugin Name: Divi Builder
 * Plugin URI: http://elegantthemes.com
 * Description: The ultimate WordPress page builder. Already included and not needed when using the Divi or Extra theme.
 * Version: 4.27.5
 * Author: Elegant Themes
 * Author URI: http://elegantthemes.com
 * License: GPLv2 or later
 */

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

define( 'ET_BUILDER_PLUGIN_DIR', trailingslashit( plugin_dir_path( __FILE__ ) ) );
define( 'ET_BUILDER_PLUGIN_URI', plugins_url('', __FILE__) );
define( 'ET_BUILDER_PLUGIN_VERSION', '4.27.5' );

if ( ! class_exists( 'ET_Dashboard_v2' ) ) {
	require_once( ET_BUILDER_PLUGIN_DIR . 'dashboard/dashboard.php' );
}

class ET_Builder_Plugin extends ET_Dashboard_v2 {
	var $plugin_version = ET_BUILDER_PLUGIN_VERSION;
	var $_options_pagename = 'et_builder_options';
	var $menu_page;
	private static $_this;

	function __construct() {
		// Don't allow more than one instance of the class
		if ( isset( self::$_this ) ) {
			wp_die( sprintf( esc_html__( '%s is a singleton class and you cannot create a second instance.', 'et_builder' ),
				get_class( $this ) )
			);
		}

		if ( ( defined( 'ET_BUILDER_THEME' ) && ET_BUILDER_THEME ) || function_exists( 'et_divi_fonts_url' ) ) {
			return; // Disable the plugin, if the theme comes with the Builder
		}

		self::$_this = $this;

		$this->protocol = is_ssl() ? 'https' : 'http';

		$this->et_plugin_setup_builder();

		add_action( 'admin_enqueue_scripts', array( $this, 'register_scripts' ) );

		add_action( 'wp_enqueue_scripts', array( $this, 'load_scripts_styles' ) );

		add_action( 'wp_enqueue_scripts', array( $this, 'et_divi_builder_print_stylesheet' ) );

		add_action( 'admin_init', array( $this, 'construct_dashboard' ) );

		add_action( 'wp_ajax_et_builder_save_settings', array( $this, 'builder_save_settings' ) );

		add_action( 'wp_ajax_et_builder_refresh_lists', array( $this, 'refresh_lists' ) );

		add_action( 'wp_ajax_et_builder_save_updates_settings', array( $this, 'save_updates_settings' ) );

		add_action( 'wp_ajax_et_builder_save_google_api_settings', array( $this, 'save_google_api_settings' ) );

		add_action( 'admin_enqueue_scripts', array( $this, 'et_pb_hide_options_menu' ) );

		add_filter( 'et_pb_builder_options_array', array( $this, 'get_builder_options' ) );

		add_filter( 'et_builder_free_form_css_selectors', array( $this, 'update_free_form_css_selectors' ) );

		add_action( 'et_builder_after_free_form_css_processed', array( $this, 'apply_free_form_css' ), 10, 2 );

		$theme_file_path_length = strlen( get_stylesheet_directory() );

		if ( class_exists( 'WooCommerce' ) && function_exists( 'wc_locate_template' ) && substr( wc_locate_template( 'archive-product.php' ), 0, $theme_file_path_length ) === get_stylesheet_directory() ) {
			add_action( 'et_pb_shop_before_print_shop', array( $this, 'force_woocommerce_default_templates' ) );
			add_action( 'et_pb_shop_after_print_shop', array( $this, 'return_woocommerce_default_templates' ) );
		}
	}

	function construct_dashboard() {
		$dashboard_args = array(
			'et_dashboard_options_pagename'  => $this->_options_pagename,
			'et_dashboard_plugin_name'       => 'pb_builder',
			'et_dashboard_save_button_text'  => esc_html__( 'Save', 'et_builder' ),
			'et_dashboard_options_path'      => ET_BUILDER_PLUGIN_DIR . 'dashboard/includes/options.php',
			'et_dashboard_options_page'      => 'toplevel_page',
			'et_dashboard_options_pagename'  => 'et_divi_options',
			'et_dashboard_plugin_class_name' => 'et_builder',
		);

		parent::__construct( $dashboard_args );
	}

	function builder_save_settings() {
		self::dashboard_save_settings();
	}

	/**
	 * Retrieves the Builder options from DB
	 * @return array
	 */
	function get_builder_options() {
		$auto_updates_settings = get_option( 'et_automatic_updates_options' ) ? get_option( 'et_automatic_updates_options' ) : array();
		$google_api_settings = get_option( 'et_google_api_settings' ) ? get_option( 'et_google_api_settings' ) : array();
		$builder_options = get_option( 'et_pb_builder_options' ) ? get_option( 'et_pb_builder_options' ) : array();
		$processed_updates_settings = array();

		// prepare array of Auto Updates settings
		$processed_updates_settings['updates_main_updates_username'] = isset( $auto_updates_settings['username'] ) ? $auto_updates_settings['username'] : '';
		$processed_updates_settings['updates_main_updates_api_key'] = isset( $auto_updates_settings['api_key'] ) ? $auto_updates_settings['api_key'] : '';

		// prepare array of Google API settings
		$processed_updates_settings['api_main_google_api_key'] = isset( $google_api_settings['api_key'] ) ? $google_api_settings['api_key'] : '';
		$processed_updates_settings['api_main_enqueue_google_maps_script'] = isset( $google_api_settings['enqueue_google_maps_script'] ) ? $google_api_settings['enqueue_google_maps_script'] : false;
		$processed_updates_settings['api_main_use_google_fonts'] = isset( $google_api_settings['use_google_fonts'] ) ? $google_api_settings['use_google_fonts'] : false;

		$complete_options_set = array_merge( $builder_options, $processed_updates_settings );
		return $complete_options_set;
	}

	function options_page() {
		// display wp error screen if plugin options disabled for current user
		if ( ! et_pb_is_allowed( 'theme_options' ) ) {
			wp_die( esc_html__( "You don't have sufficient permissions to access this page", 'et_builder_plugin' ) );
		}

		printf(
			'<div class="et_pb_save_settings_button_wrapper">
				<a href="#" id="et_pb_save_plugin" class="button button-primary button-large">%1$s</a>
				<h3 class="et_pb_settings_title">
					%2$s
				</h3>
			</div>',
			esc_html__( 'Save Settings', 'et_builder_plugin' ),
			esc_html__( 'Divi Builder Options', 'et_builder_plugin' )
		);

		self::generate_options_page();
	}

	function et_plugin_setup_builder() {
		define( 'ET_BUILDER_PLUGIN_ACTIVE', true );

		define( 'ET_BUILDER_VERSION', ET_BUILDER_PLUGIN_VERSION );

		define( 'ET_BUILDER_DIR', ET_BUILDER_PLUGIN_DIR . 'includes/builder/' );
		define( 'ET_BUILDER_URI', trailingslashit( plugins_url( '', __FILE__ ) ) . 'includes/builder' );
		define( 'ET_BUILDER_LAYOUT_POST_TYPE', 'et_pb_layout' );
		define( 'ET_CLOUD_PLUGIN_DIR', ET_BUILDER_PLUGIN_DIR . 'cloud/' );
		define( 'ET_CLOUD_PLUGIN_URI', trailingslashit( plugins_url( '', __FILE__ ) ) . 'cloud/' );

		if ( ! defined( 'ET_THEME_OPTIONS_POST_TYPE' ) ) {
			define( 'ET_THEME_OPTIONS_POST_TYPE', 'et_theme_options' );
		}

		load_theme_textdomain( 'et_builder', ET_BUILDER_DIR . 'languages' );

		load_plugin_textdomain( 'et_builder_plugin', false, dirname( plugin_basename( __FILE__ ) ) . '/lang/' );

		require ET_BUILDER_PLUGIN_DIR . 'functions.php';
		require ET_BUILDER_PLUGIN_DIR . 'theme-compat.php';
		require ET_BUILDER_DIR . 'framework.php';

		et_pb_register_posttypes();

		add_action( 'admin_menu', array( $this, 'add_divi_menu' ));

		// Check if the plugin was just activated and call for the et_builder_prepare_bfb().
		if ( 'activated' === get_option( 'et_pb_builder_plugin_status', '' ) ) {
			et_builder_prepare_bfb();
			// Delete cached definitions / helpers
			et_fb_delete_builder_assets();
			delete_option( 'et_pb_builder_plugin_status' );

			flush_rewrite_rules();
		}
	}

	function add_divi_menu() {
		add_menu_page( 'Divi', 'Divi', 'switch_themes', 'et_divi_options', array( $this, 'options_page' ) );

		// Add Theme Options menu only if it's enabled for current user
		if ( et_pb_is_allowed( 'theme_options' ) ) {
			add_submenu_page( 'et_divi_options', esc_html__( 'Plugin Options', 'et_builder_plugin' ), esc_html__( 'Plugin Options', 'et_builder_plugin' ), 'manage_options', 'et_divi_options', array( $this, 'options_page' ) );
		}

		et_theme_builder_add_admin_page( 'et_divi_options' );

		// Add Divi Library menu only if it's enabled for current user
		if ( et_pb_is_allowed( 'divi_library' ) ) {
			add_submenu_page( 'et_divi_options', esc_html__( 'Divi Library', 'et_builder' ), esc_html__( 'Divi Library', 'et_builder' ), 'manage_options', 'edit.php?post_type=et_pb_layout' );
		}
		add_submenu_page( 'et_divi_options', esc_html__( 'Divi Role Editor', 'et_builder' ), esc_html__( 'Divi Role Editor', 'et_builder' ), 'manage_options', 'et_divi_role_editor', 'et_pb_display_role_editor' );
	}

	/**
	 *
	 * Adds js script which removes the top menu item from Divi menu if it's disabled
	 *
	 */
	function et_pb_hide_options_menu() {
		// do nothing if plugin options should be displayed in the menu
		if ( et_pb_is_allowed( 'theme_options' ) ) {
			return;
		}

		wp_enqueue_script( 'et-builder-custom-admin-menu', ET_BUILDER_PLUGIN_URI . '/js/menu_fix.js', array( 'jquery' ), $this->plugin_version, true );
	}

	function load_scripts_styles() {
		// $dynamic_js_suffix  = et_use_dynamic_js() ? '-dynamic' : ''; // @temp-disabled-dynamic-assets-js
		$dynamic_css_suffix = et_use_dynamic_css() ? '' : '-static';
		$rtl_suffix         = $dynamic_css_suffix && is_rtl() ? '-rtl' : '';

		wp_enqueue_script( 'divi-builder-custom-script', ET_BUILDER_PLUGIN_URI . '/js/scripts.min.js', array( 'jquery' ), $this->plugin_version, true );
		wp_enqueue_style( 'divi-builder-style', ET_BUILDER_PLUGIN_URI . '/css/style' . $dynamic_css_suffix . $rtl_suffix . '.min.css', array(), ET_BUILDER_VERSION );
	}

	/**
	 * Print stylesheet inline.
	 */
	public function et_divi_builder_print_stylesheet() {
		$options                  = get_option( 'et_pb_builder_options', array() );
		$enable_inline_stylesheet = isset( $options['performance_main_inline_stylesheet'] ) ? $options['performance_main_inline_stylesheet'] : 'on';

		if ( 'on' === $enable_inline_stylesheet && et_use_dynamic_css() ) {
			$stylesheet                   = ET_BUILDER_PLUGIN_DIR . '/css/style.min.css';
			$stylesheet                   = str_replace( '..', '', $stylesheet );
			$stylesheet_contents          = file_get_contents( $stylesheet );
			$url_match                    = '/url\(\.\.\//i';
			$stylesheet_contents_replaced = preg_replace( $url_match, 'url(' . ET_BUILDER_PLUGIN_URI . '/', $stylesheet_contents );

			if ( false !== $stylesheet_contents ) {
				/**
				 * Filter DBP stylesheet contents.
				 *
				 * @since ??
				 *
				 * @param string $stylesheet_contents_replaced DBP stylesheet contents.
				 */
				$stylesheet_contents_replaced = apply_filters( 'et_builder_plugin_stylesheet_contents', $stylesheet_contents_replaced );

				wp_register_style( 'divi-builder-style-inline', false, array(), $this->plugin_version );
				wp_enqueue_style( 'divi-builder-style-inline' );
				wp_add_inline_style( 'divi-builder-style-inline', $stylesheet_contents_replaced );
				add_action( 'wp_enqueue_scripts', array( $this, 'et_divi_builder_dequeue_stylesheet' ), 99999999 );
			}
		}
	}

	/**
	 * Dequeue the theme stylesheet.
	 */
	public function et_divi_builder_dequeue_stylesheet() {
		$styles     = wp_styles();
		$stylesheet = ET_BUILDER_PLUGIN_URI . '/css/style.min.css';
		$options    = get_option( 'et_pb_builder_options', array() );

		if ( empty( $styles->registered ) ) {
			return;
		}

		foreach ( $styles->registered as $handle => $style ) {
			if ( $style->src === $stylesheet ) {
				wp_deregister_style( $handle );
				break;
			}
		}
	}

	function register_scripts( $hook ) {
		if ( "toplevel_page_et_divi_options" !== $hook ) {
			return;
		}

		et_core_load_main_fonts();

		wp_enqueue_style( 'et-builder-css', ET_BUILDER_PLUGIN_URI . '/css/admin.css', array(), $this->plugin_version );
		wp_enqueue_script( 'et-builder-js', ET_BUILDER_PLUGIN_URI . '/js/admin.js', array( 'jquery' ), $this->plugin_version, true );
		wp_localize_script( 'et-builder-js', 'builder_settings', array(
			'et_builder_nonce' => wp_create_nonce( 'et_builder_nonce' ),
			'ajaxurl'          => admin_url( 'admin-ajax.php', $this->protocol ),
			'authorize_text'   => esc_html__( 'Authorize', 'et_builder_plugin' ),
			'reauthorize_text' => esc_html__( 'Re-Authorize', 'et_builder_plugin' ),
			'save_settings'    => wp_create_nonce( 'save_settings' ),
			'et_core_nonces'   => et_core_get_nonces(),
		) );
	}

	function save_updates_settings() {
		if ( ! wp_verify_nonce( $_POST['et_builder_nonce'] , 'et_builder_nonce' ) ) {
			die( -1 );
		}

		if ( ! current_user_can( 'manage_options' ) ) {
			die( -1 );
		}

		$username = ! empty( $_POST['et_builder_updates_username'] ) ? sanitize_text_field( $_POST['et_builder_updates_username'] ) : '';
		$api_key = ! empty( $_POST['et_builder_updates_api_key'] ) ? sanitize_text_field( $_POST['et_builder_updates_api_key'] ) : '';

		update_option( 'et_automatic_updates_options', array(
			'username' => $username,
			'api_key' => $api_key,
		) );

		die();
	}

	function save_google_api_settings() {
		if ( ! wp_verify_nonce( $_POST['et_builder_nonce'] , 'et_builder_nonce' ) ) {
			die( -1 );
		}

		if ( ! current_user_can( 'manage_options' ) ) {
			die( -1 );
		}

		$api_key                                        = ! empty( $_POST['et_builder_google_api_key'] ) ? sanitize_text_field( $_POST['et_builder_google_api_key'] ) : '';
		$enqueue_google_maps_script                     = ( isset( $_POST['et_builder_enqueue_google_maps_script'] ) && 'on' === $_POST['et_builder_enqueue_google_maps_script'] ) ? 'on' : 'off';
		$use_google_fonts                               = ( isset( $_POST['et_builder_use_google_fonts'] ) && 'on' === $_POST['et_builder_use_google_fonts'] ) ? 'on' : 'off';
		$google_fonts_inline                            = ( isset( $_POST['et_builder_google_fonts_inline'] ) && 'on' === $_POST['et_builder_google_fonts_inline'] ) ? 'on' : 'off';
		$limit_google_fonts_support_for_legacy_browsers = ( isset( $_POST['et_builder_limit_google_fonts_support_for_legacy_browsers'] ) && 'on' === $_POST['et_builder_limit_google_fonts_support_for_legacy_browsers'] ) ? 'on' : 'off';

		update_option( 'et_google_api_settings', array(
			'api_key'                                        => $api_key,
			'enqueue_google_maps_script'                     => $enqueue_google_maps_script,
			'use_google_fonts'                               => $use_google_fonts,
			'google_fonts_inline'                            => $google_fonts_inline,
			'limit_google_fonts_support_for_legacy_browsers' => $limit_google_fonts_support_for_legacy_browsers,
		));

		die();
	}

	/**
	 * Force WooCommerce to use its default templates (ignoring themes' custom templates) on shop module
	 * @return void
	 */
	function force_woocommerce_default_templates() {
		add_filter( 'woocommerce_template_path', '__return_false' );
	}

	/**
	 * Cleanup force_woocommerce_default_templates(), allowing non shop module WooCommerce shortcode to use theme's WooCommerce template
	 * @return void
	 */
	function return_woocommerce_default_templates() {
		remove_filter( 'woocommerce_template_path', '__return_false' );
	}

	/**
	 * Update free form css selectors.
	 *
	 * @param string $default_selector Default selector.
	 *
	 * @return string
	 */
	public function update_free_form_css_selectors( $default_selector ) {
		return '.et-db #et-boc .et-l ' . $default_selector;
	}

	/**
	 * Apply free form css in Divi Builder Plugin.
	 *
	 * @param string $css           CSS.
	 * @param array  $style_manager Style manager.
	 *
	 * @return void
	 */
	public function apply_free_form_css( $css, $style_manager ) {
		( $style_manager['manager'] )->set_data( wp_strip_all_tags( $css ), 40 );
	}
}

function et_divi_builder_init_plugin() {
	new ET_Builder_Plugin();
}
add_action( 'init', 'et_divi_builder_init_plugin' );

function et_divi_builder_maybe_load_core() {
	if ( ! defined( 'ET_CORE' ) ) {
		require_once ET_BUILDER_PLUGIN_DIR . 'core/init.php';
		et_core_setup();
	}

	define( 'ET_COMMON_DIR', ET_BUILDER_PLUGIN_DIR . 'common/' );

	require_once ET_BUILDER_PLUGIN_DIR . '/common/init.php';
	require_once ET_BUILDER_PLUGIN_DIR . '/core/code-snippets/code-snippets.php';

	et_common_setup();

	et_core_enable_automatic_updates( ET_BUILDER_PLUGIN_URI, ET_BUILDER_PLUGIN_VERSION );
}
add_action( 'plugins_loaded', 'et_divi_builder_maybe_load_core' );

if ( ! function_exists( 'et_divi_builder_setup_thumbnails' ) ) :
function et_divi_builder_setup_thumbnails() {
	add_filter( 'theme_locale', 'et_fb_set_builder_locale' );

	add_theme_support( 'post-thumbnails' );

	global $et_theme_image_sizes;

	$et_theme_image_sizes = array(
		'400x250'   => 'et-pb-post-main-image',
		'1080x675'  => 'et-pb-post-main-image-fullwidth',
		'400x284'   => 'et-pb-portfolio-image',
		'510x382'   => 'et-pb-portfolio-module-image',
		'1080x9999' => 'et-pb-portfolio-image-single',
		'400x516'   => 'et-pb-gallery-module-image-portrait',
	);

	$et_theme_image_sizes = apply_filters( 'et_theme_image_sizes', $et_theme_image_sizes );
	$crop = apply_filters( 'et_post_thumbnails_crop', true );

	if ( is_array( $et_theme_image_sizes ) ){
		foreach ( $et_theme_image_sizes as $image_size_dimensions => $image_size_name ){
			$dimensions = explode( 'x', $image_size_dimensions );

			if ( in_array( $image_size_name, array( 'et-pb-portfolio-image-single' ) ) ){
				$crop = false;
			}

			add_image_size( $image_size_name, $dimensions[0], $dimensions[1], $crop );

			$crop = apply_filters( 'et_post_thumbnails_crop', true );
		}
	}
}
endif;
add_action( 'after_setup_theme', 'et_divi_builder_setup_thumbnails' );

/**
 * Switch the translation of Visual Builder interface to current user's language
 * @return void
 */
if ( ! function_exists( 'et_fb_set_builder_locale' ) ) :
function et_fb_set_builder_locale( $locale ) {
	// apply translations inside VB only
	if ( empty( $_GET['et_fb'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.NoNonceVerification
		return $locale;
	}

	$user = get_user_locale();

	if ( $user === $locale ) {
		return $locale;
	}

	if ( ! function_exists( 'switch_to_locale' ) ) {
		return $locale;
	}

	switch_to_locale( $user );

	return $user;
}
endif;

/**
 * Load un-minified and un-combined scripts.
 *
 * @param string $load check if loading unminified scripts.
 * @return string
 * @deprecated ??
 */
if ( ! function_exists( 'et_divi_builder_minify_combine_scripts' ) ) :
function et_divi_builder_minify_combine_scripts( $load ) {
	$options = get_option( 'et_pb_builder_options', array() );
	$option  = isset( $options['advanced_main_minify_combine_scripts'] ) ? $options['advanced_main_minify_combine_scripts'] : 'on';

	if ( $option === 'off' ) {
		return true;
	}

	return $load;
}
endif;

/**
 * Load un-minified and un-combined styles.
 *
 * @param string $load check if loading unminified styles.
 * @return string
 * @deprecated ??
 */
if ( ! function_exists( 'et_divi_builder_minify_combine_styles' ) ) :
function et_divi_builder_minify_combine_styles( $load ) {
	$options = get_option( 'et_pb_builder_options', array() );
	$option  = isset( $options['advanced_main_minify_combine_styles'] ) ? $options['advanced_main_minify_combine_styles'] : 'on';

	if ( $option === 'off' ) {
		return true;
	}

	return $load;
}
endif;

if ( ! function_exists( 'et_dbp_body_class_backwards_compatibility' ) ):
function et_dbp_body_class_backwards_compatibility( $classes ) {
	$classes[] = 'et_divi_builder';

	return $classes;
}
add_filter( 'body_class', 'et_dbp_body_class_backwards_compatibility' );
endif;

/**
 * Set the plugin activated flag to use it later when needed.
 */
function et_builder_set_plugin_activated_flag() {
	update_option( 'et_pb_builder_plugin_status', 'activated' );
}
register_activation_hook( __FILE__, 'et_builder_set_plugin_activated_flag' );

/**
 * Auto-deactivate Divi Builder Plugin if the active/parent theme uses Builder
 *
 * @since ??
 */
function et_divi_builder_deactivate_if_theme_uses_builder() {
	// Don't do anything if the user isn't logged in
	if ( ! is_user_logged_in() ) {
		return;
	}

	$current_template = esc_attr( get_option( 'template' ) );

	// Check whether the active (or parent) theme is Divi or Extra
	if ( ! in_array( $current_template, array( 'Divi', 'Extra' ) ) ) {
		return;
	}

	if ( current_user_can( 'activate_plugins' ) ) {
		add_action( 'admin_init', 'et_divi_builder_auto_deactivate' );
		add_action( 'admin_notices', 'et_divi_builder_auto_deactivate_notice' );
	}
}
add_action( 'plugins_loaded', 'et_divi_builder_deactivate_if_theme_uses_builder' );

/**
 * Deactivate this plugin
 *
 * @since ??
 */
function et_divi_builder_auto_deactivate() {
	deactivate_plugins( plugin_basename( __FILE__ ) );
}

/**
 * Print a WP Admin notice when Divi Builder is deactivated
 *
 * @since ??
 */
function et_divi_builder_auto_deactivate_notice() {
	$classes = 'notice notice-warning is-dismissible';
	$message = __( 'Your theme already includes the Divi Builder, so the Divi Builder plugin has been deactivated. It is not needed when using the Divi or Extra theme.', 'et_builder' );

	printf( '<div class="%1$s"><p>%2$s</p></div>', esc_attr( $classes ), esc_html( $message ) );

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

/**
 * Support Center
 *
 * @since ??
 */
function et_add_divi_builder_support_center() {
	$support_center = new ET_Core_SupportCenter( 'divi_builder_plugin' );
	$support_center->init();
}
add_action( 'init', 'et_add_divi_builder_support_center' );

/**
 * Deactivate Divi Builder plugin if necessary.
 *
 * The code is part of `submodule-core`. However, there is no way for the code to be fired
 * on plugin activation hook because `submodule-core` is loaded on `plugins_loaded` hook.
 * In this case, we need to load ET_Core_CompatibilityWarning class manually, so we can
 * call maybe_deactivate_incompatible_plugin() method.
 *
 * @since ??
 */
function et_divi_builder_maybe_deactivate() {
	$compatibility_warning_file = plugin_dir_path( __FILE__ ) . 'core/components/CompatibilityWarning.php';

	// Ensure to load the class file only when it exists.
	if ( ! file_exists( $compatibility_warning_file ) ) {
		return;
	}

	require_once $compatibility_warning_file;

	// Run checking just in case we need to deactivate the plugin.
	ET_Core_CompatibilityWarning::maybe_deactivate_incompatible_plugin( plugin_basename( __FILE__ ) );
}
register_activation_hook( __FILE__, 'et_divi_builder_maybe_deactivate' );
