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<?php |
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/* |
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* 2017 Romain CANON <[email protected]> |
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* |
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* This file is part of the TYPO3 Formz project. |
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* It is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License, either |
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* version 3 of the License, or any later version. |
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* |
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* For the full copyright and license information, see: |
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* http://www.gnu.org/licenses/gpl-3.0.html |
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*/ |
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namespace Romm\Formz\AssetHandler; |
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use Romm\Formz\Exceptions\ClassNotFoundException; |
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use Romm\Formz\Exceptions\InvalidArgumentTypeException; |
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use Romm\Formz\Form\FormObject; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Extbase\Mvc\Controller\ControllerContext; |
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/** |
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* A factory used to get instances of asset handlers. This is useful because it |
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* will automatically manage cached instances of asset handlers for a given |
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* form. |
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* |
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* The factory is here to store all information which can be useful to the asset |
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* handlers. |
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*/ |
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class AssetHandlerFactory |
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{ |
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/** |
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* Contains the instances of factory for every form/controller context. |
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* |
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* @var array |
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*/ |
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protected static $factoryInstances = []; |
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/** |
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* @var AbstractAssetHandler[] |
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*/ |
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protected $instances = []; |
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/** |
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* @var FormObject |
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*/ |
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protected $formObject = []; |
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/** |
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* @var ControllerContext |
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*/ |
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protected $controllerContext; |
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/** |
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* @param FormObject $formObject Name of the form class. |
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* @param ControllerContext $controllerContext |
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*/ |
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protected function __construct(FormObject $formObject, ControllerContext $controllerContext) |
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{ |
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$this->formObject = $formObject; |
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$this->controllerContext = $controllerContext; |
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} |
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/** |
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* Returns a factory instance. The same instance will be returned for the |
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* same `$formObject` and `$controllerContext` parameters. |
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* |
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* @param FormObject $formObject Configuration of the form. |
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* @param ControllerContext $controllerContext |
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* @return AssetHandlerFactory |
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*/ |
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public static function get(FormObject $formObject, ControllerContext $controllerContext) |
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{ |
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$hash = md5(spl_object_hash($formObject) . spl_object_hash($controllerContext)); |
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if (false === array_key_exists($hash, self::$factoryInstances)) { |
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self::$factoryInstances[$hash] = new self($formObject, $controllerContext); |
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} |
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return self::$factoryInstances[$hash]; |
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} |
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/** |
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* Return an instance of the wanted asset handler. Local storage is handled. |
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* |
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* @param string $className |
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* @return AbstractAssetHandler |
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* @throws ClassNotFoundException |
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* @throws InvalidArgumentTypeException |
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*/ |
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public function getAssetHandler($className) |
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{ |
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if (false === array_key_exists($className, $this->instances)) { |
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if (false === class_exists($className)) { |
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throw ClassNotFoundException::wrongAssetHandlerClassName($className); |
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} |
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$instance = GeneralUtility::makeInstance($className, $this); |
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if (false === $instance instanceof AbstractAssetHandler) { |
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throw InvalidArgumentTypeException::wrongAssetHandlerType(get_class($instance)); |
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} |
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$this->instances[$className] = $instance; |
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} |
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return $this->instances[$className]; |
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} |
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/** |
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* @return FormObject |
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*/ |
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public function getFormObject() |
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{ |
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return $this->formObject; |
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} |
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/** |
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* @return ControllerContext |
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*/ |
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public function getControllerContext() |
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{ |
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return $this->controllerContext; |
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} |
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} |
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romm /
formz
