WC_Autoloader class

includes/class-wc-autoloader.php

@@ -0,0 +1,89 @@
+<?php
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/**
+ * WooCommerce Autoloader
+ *
+ * @class 		WC_Autoloader
+ * @version		2.3.0
+ * @package		WooCommerce/Classes/
+ * @category	Class
+ * @author 		WooThemes
+ */
+class WC_Autoloader {
+
+	/**
+	 * Path to the includes directory
+	 * @var string
+	 */
+	private $include_path = '';
+
+	/**
+	 * The Constructor
+	 */
+	public function __construct() {
+		if ( function_exists( "__autoload" ) ) {
+			spl_autoload_register( "__autoload" );
+		}
+
+		spl_autoload_register( array( $this, 'autoload' ) );
+
+		$this->include_path = untrailingslashit( plugin_dir_path( WC_PLUGIN_FILE ) ) . '/includes/';
+	}
+
+	/**
+	 * Take a class name and turn it into a file name
+	 * @param  string $class
+	 * @return string
+	 */
+	private function get_file_name_from_class( $class ) {
+		return 'class-' . str_replace( '_', '-', strtolower( $class ) ) . '.php';
+	}
+
+	/**
+	 * Include a class file
+	 * @param  string $path
+	 * @return bool successful or not
+	 */
+	private function load_file( $path ) {
+		if ( $path && is_readable( $path ) ) {
+			include_once( $path );
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Auto-load WC classes on demand to reduce memory consumption.
+	 *
+	 * @param string $class
+	 */
+	public function autoload( $class ) {
+		$class = strtolower( $class );
+		$file  = $this->get_file_name_from_class( $class );
+		$path  = '';
+
+		if ( strpos( $class, 'wc_addons_gateway_' ) === 0 ) {
+			$path = $this->include_path . 'gateways/' . substr( str_replace( '_', '-', $class ), 18 ) . '/';
+		} elseif ( strpos( $class, 'wc_gateway_' ) === 0 ) {
+			$path = $this->include_path . 'gateways/' . substr( str_replace( '_', '-', $class ), 11 ) . '/';
+		} elseif ( strpos( $class, 'wc_shipping_' ) === 0 ) {
+			$path = $this->include_path . 'shipping/' . substr( str_replace( '_', '-', $class ), 12 ) . '/';
+		} elseif ( strpos( $class, 'wc_shortcode_' ) === 0 ) {
+			$path = $this->include_path . 'shortcodes/';
+		} elseif ( strpos( $class, 'wc_meta_box' ) === 0 ) {
+			$path = $this->include_path . 'admin/meta-boxes/';
+		} elseif ( strpos( $class, 'wc_admin' ) === 0 ) {
+			$path = $this->include_path . 'admin/';
+		}
+
+		if ( ! $this->load_file( $path . $file ) && strpos( $class, 'wc_' ) === 0 ) {
+			$this->load_file( $this->include_path . $file );
+		}
+	}
+}
+
+new WC_Autoloader();