/** * Return an instance of this class. * @since 1.0.0 * @return object A single instance of this class. */ public static function get_instance() { // If the single instance hasn't been set, set it now. if (null == self::$instance) { self::$instance = new self(); } return self::$instance; }
/** * Initialize the plugin by loading admin scripts & styles and adding a * settings page and menu. * @since 1.0.0 */ private function __construct() { /* * Call $plugin_slug from public plugin class. */ $plugin = Vmp::get_instance(); $this->plugin_slug = $plugin->get_plugin_slug(); // Load admin style sheet and JavaScript. add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_styles')); add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts')); // Add the options page and menu item. add_action('admin_menu', array($this, 'add_plugin_admin_menu')); add_action('admin_init', array($this, 'register_settings')); }