← All changes | core/autoloader.php +119 -0 1-final → 1.0.1 View file →

		@@ -1,0 +1,119 @@
	1	+<?php
	2	+
	3	+/**
	4	+ * Includes the Autoloader used.
	5	+ * @package Templately
	6	+ */
	7	+
	8	+namespace Templately;
	9	+
	10	+// if direct access than exit the file.
	11	+defined('ABSPATH') || exit;
	12	+
	13	+class Autoloader {
	14	+ /**
	15	+ * Instance of Autoloader
	16	+ * @var Autoloader
	17	+ */
	18	+ private static $_instance = null;
	19	+ /**
	20	+ * Classes map.
	21	+ * Maps classes to file names.
	22	+ * @access private
	23	+ * @static
	24	+ * @var array Classes array use by Templately.
	25	+ */
	26	+ private static $classes_map;
	27	+ /**
	28	+ * Classes directory.
	29	+ * Maps classes to file names.
	30	+ * @access private
	31	+ * @static
	32	+ * Classes folder used for @package Templately.
	33	+ */
	34	+ private static $SOURCE_DIRECTORY = TEMPLATELY_PATH;
	35	+ /**
	36	+ * Classmap file for Autoloader
	37	+ * @access private
	38	+ * @static
	39	+ * Classes array used for @package Templately.
	40	+ */
	41	+ private static $CLASS_MAPS_FILE = __DIR__ . '/classmaps.php';
	42	+
	43	+ /**
	44	+ * Get a single instace of Autoloader
	45	+ * @return Autoloader
	46	+ */
	47	+ public static function init() {
	48	+ if (is_null(self::$_instance)) {
	49	+ self::$_instance = new self();
	50	+ }
	51	+ return self::$_instance;
	52	+ }
	53	+
	54	+ /**
	55	+ * Automatically get invoked when initilize the Autoloader.
	56	+ */
	57	+ public function __construct() {
	58	+ spl_autoload_register(array(&$this, 'autoload'));
	59	+ }
	60	+
	61	+ /**
	62	+ * Autoload function ensure that, every class you called is loaded properly.
	63	+ * @param Object $class
	64	+ * @access private
	65	+ * @return void
	66	+ */
	67	+ private function autoload($class) {
	68	+ if (0 !== strpos($class, __NAMESPACE__ . '\\')) {
	69	+ return;
	70	+ }
	71	+ // $relative_class_name = substr( $class, strripos( $class, '\\' ) + 1, strlen( $class ) ); // OLD WAY
	72	+ $relative_class_name = preg_match('/.*\\\\([\\w]+)/', $class, $matches);
	73	+ if (count($matches) > 1) {
	74	+ $relative_class_name = $matches[1];
	75	+ }
	76	+ if (!class_exists($relative_class_name)) {
	77	+ self::load_class($relative_class_name);
	78	+ }
	79	+ }
	80	+
	81	+ /**
	82	+ * Load class.
	83	+ *
	84	+ * For a given class name, require the class file.
	85	+ *
	86	+ * @access private
	87	+ * @static
	88	+ * @param string $relative_class_name Class name.
	89	+ */
	90	+ private static function load_class($relative_class_name) {
	91	+ $classes_map = self::get_classes_map();
	92	+
	93	+ if (isset($classes_map[ $relative_class_name ])) {
	94	+ $filename = self::$SOURCE_DIRECTORY . $classes_map[ $relative_class_name ];
	95	+ if (is_readable($filename)) {
	96	+ require $filename;
	97	+ }
	98	+ }
	99	+ }
	100	+
	101	+ /**
	102	+ * Get the class map, if its not set than load the classmap file.
	103	+ * @return void
	104	+ */
	105	+ private static function get_classes_map() {
	106	+ if (!self::$classes_map) {
	107	+ self::init_classes_map();
	108	+ }
	109	+ return self::$classes_map;
	110	+ }
	111	+
	112	+ /**
	113	+ * Loader of the classmap file.
	114	+ * @return array of classes.
	115	+ */
	116	+ private static function init_classes_map() {
	117	+ self::$classes_map = require_once self::$CLASS_MAPS_FILE;
	118	+ }
	119	+}