Initial commit.

wp-content/plugins/woocommerce-services/classes/class-wc-connect-compatibility.php

@@ -0,0 +1,100 @@
+<?php
+/**
+ * A class for working around the quirks and different versions of WordPress/WooCommerce
+ * This is the base class. Its static members auto-select the correct version to use.
+ */
+
+// No direct access please.
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+if ( ! class_exists( 'WC_Connect_Compatibility' ) ) {
+	/**
+	 * WC_Connect_Compatibility class.
+	 */
+	abstract class WC_Connect_Compatibility {
+
+		/**
+		 * WC_Connect_Compatibility.
+		 *
+		 * @var WC_Connect_Compatibility
+		 */
+		private static $singleton;
+
+		/**
+		 * Woocommerce version.
+		 *
+		 * @var string
+		 */
+		private static $version = WC_VERSION;
+
+		/**
+		 * WC_Connect_Compatibility singleton instance.
+		 *
+		 * @return WC_Connect_Compatibility
+		 */
+		public static function instance() {
+			if ( is_null( self::$singleton ) ) {
+				self::$singleton = self::select_compatibility();
+			}
+
+			return self::$singleton;
+		}
+
+		/**
+		 * Return subclass for active version of WooCommerce.
+		 *
+		 * @return WC_Connect_Compatibility subclass for active version of WooCommerce
+		 */
+		private static function select_compatibility() {
+			if ( version_compare( self::$version, '6.9.0', '<' ) ) {
+				require_once 'class-wc-connect-compatibility-wc30.php';
+
+				return new WC_Connect_Compatibility_WC30();
+			} else {
+				require_once 'class-wc-connect-compatibility-wc69.php';
+
+				return new WC_Connect_Compatibility_WC69();
+			}
+		}
+
+		/**
+		 * Overwrite default WooCommerce Version.
+		 *
+		 * @param string $value WooCommerce Version.
+		 * @return void
+		 */
+		public static function set_version( $value ) {
+			self::$singleton = null;
+			self::$version   = $value;
+		}
+
+		/**
+		 * Revert to current WooCommerce Version.
+		 *
+		 * @return void
+		 */
+		public static function reset_version() {
+			self::$singleton = null;
+			self::$version   = WC_VERSION;
+		}
+
+		/**
+		 * Return the order admin screen
+		 *
+		 * @return string The order admin screen
+		 */
+		abstract public function get_order_admin_screen();
+
+		/**
+		 * Helper function to initialize the global $theorder object, mostly used during order meta boxes rendering.
+		 *
+		 * @param WC_Order|WP_Post $post_or_order_object Post or order object.
+		 *
+		 * @return bool|WC_Order|WC_Order_Refund.
+		 */
+		abstract public function init_theorder_object( $post_or_order_object );
+
+	}
+}