NF_Abstracts_Extension

Class NF_Abstracts_Extension.

Defined (1)

The class is defined in the following location(s).

/includes/Abstracts/Extension.php  
  1. final class NF_Abstracts_Extension 
  2. { 
  3.     /** 
  4.      * @since 3.0 
  5.      */ 
  6.     const VERSION = ''; 
  7.  
  8.     /** 
  9.      * @var NF_Abstracts_Extension 
  10.      * @since 3.0 
  11.      */ 
  12.     private static $instance; 
  13.  
  14.     /** 
  15.      * Plugin Directory 
  16.      * 
  17.      * @since 3.0 
  18.      * @var string $dir 
  19.      */ 
  20.     public static $dir = ''; 
  21.  
  22.     /** 
  23.      * Plugin URL 
  24.      * 
  25.      * @since 3.0 
  26.      * @var string $url 
  27.      */ 
  28.     public static $url = ''; 
  29.  
  30.     /** 
  31.      * Form Fields 
  32.      * 
  33.      * @since 3.0 
  34.      * @var array 
  35.      */ 
  36.     public $fields = array(); 
  37.  
  38.     /** 
  39.      * Form Actions 
  40.      * 
  41.      * @since 3.0 
  42.      * @var array 
  43.      */ 
  44.     public $actions = array(); 
  45.  
  46.     protected $autoloader_prefix = ''; 
  47.  
  48.     /** 
  49.      * Main Plugin Instance 
  50.      * 
  51.      * Insures that only one instance of a plugin class exists in memory at any one 
  52.      * time. Also prevents needing to define globals all over the place. 
  53.      * 
  54.      * @since 3.0 
  55.      * @static 
  56.      * @staticvar array $instance 
  57.      * @return Plugin Highlander Instance 
  58.      */ 
  59.     public static function instance() 
  60.     { 
  61.         if (!isset(self::$instance) && !(self::$instance instanceof NF_Abstracts_Extension)) { 
  62.             self::$instance = new NF_Abstracts_Extension(); 
  63.  
  64.             self::$dir = plugin_dir_path(__FILE__); 
  65.  
  66.             self::$url = plugin_dir_url(__FILE__); 
  67.  
  68.             /** 
  69.              * Register our autoloader 
  70.              */ 
  71.             spl_autoload_register(array(self::$instance, 'autoloader')); 
  72.         } 
  73.     } 
  74.  
  75.     public function autoloader( $class_name ) 
  76.     { 
  77.         if( class_exists( $class_name ) ) return; 
  78.  
  79.         if( ! $this->autoloader_prefix ) { 
  80.             $class = explode( '_', __CLASS__ ); 
  81.             $this->autoloader_prefix = $class[ 0 ]; 
  82.         } 
  83.  
  84.         if ( false !== strpos( $class_name, $this->autoloader_prefix ) ) { 
  85.             $class_name = str_replace($this->autoloader_prefix, '', $class_name); 
  86.             $classes_dir = realpath(plugin_dir_path(__FILE__)) . DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR; 
  87.             $class_file = str_replace('_', DIRECTORY_SEPARATOR, $class_name) . '.php'; 
  88.             if (file_exists($classes_dir . $class_file)) { 
  89.                 require_once $classes_dir . $class_file; 
  90.             } 
  91.         } 
  92.     } 
  93. }