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117 lines
2.8 KiB
117 lines
2.8 KiB
<?php |
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/** |
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* MINZ - Copyright 2011 Marien Fressinaud |
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* Sous licence AGPL3 <http://www.gnu.org/licenses/> |
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*/ |
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/** |
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* Le Dispatcher s'occupe d'initialiser le Controller et d'executer l'action |
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* déterminée dans la Request |
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* C'est un singleton |
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*/ |
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class Minz_Dispatcher { |
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const CONTROLLERS_PATH_NAME = '/Controllers'; |
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/* singleton */ |
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private static $instance = null; |
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private static $needsReset; |
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private $controller; |
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/** |
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* Récupère l'instance du Dispatcher |
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*/ |
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public static function getInstance () { |
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if (self::$instance === null) { |
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self::$instance = new Minz_Dispatcher (); |
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} |
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return self::$instance; |
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} |
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/** |
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* Lance le controller indiqué dans Request |
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* Remplit le body de Response à partir de la Vue |
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* @exception Minz_Exception |
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*/ |
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public function run () { |
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do { |
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self::$needsReset = false; |
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try { |
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$this->createController ('FreshRSS_' . Minz_Request::controllerName () . '_Controller'); |
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$this->controller->init (); |
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$this->controller->firstAction (); |
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if (!self::$needsReset) { |
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$this->launchAction ( |
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Minz_Request::actionName () |
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. 'Action' |
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); |
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} |
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$this->controller->lastAction (); |
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if (!self::$needsReset) { |
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$this->controller->view ()->build (); |
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} |
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} catch (Minz_Exception $e) { |
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throw $e; |
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} |
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} while (self::$needsReset); |
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} |
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/** |
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* Informe le contrôleur qu'il doit recommancer car la requête a été modifiée |
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*/ |
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public static function reset() { |
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self::$needsReset = true; |
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} |
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/** |
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* Instancie le Controller |
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* @param $controller_name le nom du controller à instancier |
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* @exception ControllerNotExistException le controller n'existe pas |
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* @exception ControllerNotActionControllerException controller n'est |
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* > pas une instance de ActionController |
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*/ |
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private function createController ($controller_name) { |
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$filename = APP_PATH . self::CONTROLLERS_PATH_NAME . '/' |
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. $controller_name . '.php'; |
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if (!class_exists ($controller_name)) { |
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throw new Minz_ControllerNotExistException ( |
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$controller_name, |
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Minz_Exception::ERROR |
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); |
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} |
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$this->controller = new $controller_name (); |
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if (! ($this->controller instanceof Minz_ActionController)) { |
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throw new Minz_ControllerNotActionControllerException ( |
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$controller_name, |
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Minz_Exception::ERROR |
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); |
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} |
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} |
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/** |
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* Lance l'action sur le controller du dispatcher |
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* @param $action_name le nom de l'action |
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* @exception ActionException si on ne peut pas exécuter l'action sur |
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* le controller |
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*/ |
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private function launchAction ($action_name) { |
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if (!is_callable (array ( |
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$this->controller, |
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$action_name |
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))) { |
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throw new Minz_ActionException ( |
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get_class ($this->controller), |
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$action_name, |
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Minz_Exception::ERROR |
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); |
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} |
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call_user_func (array ( |
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$this->controller, |
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$action_name |
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)); |
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} |
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}
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