fix: adds compatibility with background images lazyload on Essential …

…Grid plugin

inc/compatibilities/essential_grid.php

@@ -0,0 +1,36 @@
+<?php
+
+/**
+ * Class Optml_metaslider.
+ *
+ * @reason Metaslider behaves strange when the noscript tag is present near the image tag.
+ */
+class Optml_essential_grid extends Optml_compatibility {
+
+
+	/**
+	 * Should we load the integration logic.
+	 *
+	 * @return bool Should we load.
+	 */
+	function should_load() {
+		include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
+
+		return is_plugin_active( 'essential-grid/essential-grid.php' );
+	}
+
+	/**
+	 * Register integration details.
+	 */
+	public function register() {
+		add_filter( 'optml_lazyload_bg_classes', [ $this, 'add_bg_class' ], PHP_INT_MAX, 1 );
+	}
+
+	public function add_bg_class( $classes ) {
+		$classes[] = 'esg-media-poster';
+
+		return $classes;
+	}
+
+
+}

inc/manager.php

@@ -63,6 +63,7 @@ final class Optml_Manager {
 		'revslider',
 		'metaslider',
 		'woocommerce',
+		'essential_grid',
 		'yith_quick_view',
 	);