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<?php |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace TYPO3\CMS\Fluid\Core\ViewHelper; |
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use Psr\Container\ContainerInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use TYPO3\CMS\Core\Authentication\BackendUserAuthentication; |
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use TYPO3\CMS\Core\DependencyInjection\FailsafeContainer; |
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use TYPO3\CMS\Core\Http\ApplicationType; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Extbase\Object\ObjectManagerInterface; |
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use TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface; |
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/** |
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* Class ViewHelperResolver |
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* |
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* Class whose purpose is dedicated to resolving classes which |
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* can be used as ViewHelpers and ExpressionNodes in Fluid. |
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* |
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* This CMS-specific version of the ViewHelperResolver works |
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* almost exactly like the one from Fluid itself, with the main |
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* differences being that this one supports a legacy mode flag |
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* which when toggled on makes the Fluid parser behave exactly |
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* like it did in the legacy CMS Fluid package. |
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* |
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* In addition to modifying the behavior or the parser when |
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* legacy mode is requested, this ViewHelperResolver is also |
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* made capable of "mixing" two different ViewHelper namespaces |
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* to effectively create aliases for the Fluid core ViewHelpers |
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* to be loaded in the TYPO3\CMS\ViewHelpers scope as well. |
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* |
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* Default ViewHelper namespaces are read TYPO3 configuration at: |
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* |
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* $GLOBALS['TYPO3_CONF_VARS']['SYS']['fluid']['namespaces'] |
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* |
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* Extending this array allows third party ViewHelper providers |
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* to automatically add or extend namespaces which then become |
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* available in every Fluid template file without having to |
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* register the namespace. |
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* |
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* @internal This is a helper class which is not considered part of TYPO3's Public API. |
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*/ |
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class ViewHelperResolver extends \TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperResolver |
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{ |
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protected ContainerInterface $container; |
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/** |
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* @deprecated since v11, will be removed with 12 |
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*/ |
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protected ObjectManagerInterface $objectManager; |
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/** |
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* ViewHelperResolver constructor |
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* |
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* Loads namespaces defined in global TYPO3 configuration. Overlays `f:` |
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* with `f:debug:` when Fluid debugging is enabled in the admin panel, |
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* causing debugging-specific ViewHelpers to be resolved in that case. |
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* |
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* @internal constructor, use `ViewHelperResolverFactory->create()` instead |
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*/ |
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public function __construct(ContainerInterface $container, ObjectManagerInterface $objectManager, array $namespaces) |
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{ |
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$this->container = $container; |
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// @deprecated since v11, will be removed with 12. Drop argument in ViewHelperResolverFactory |
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$this->objectManager = $objectManager; |
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$this->namespaces = $namespaces; |
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if (($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface |
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&& ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isFrontend() |
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&& $this->getBackendUser() instanceof BackendUserAuthentication |
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) { |
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if ($this->getBackendUser()->uc['AdminPanel']['preview_showFluidDebug'] ?? false) { |
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$this->namespaces['f'][] = 'TYPO3\\CMS\\Fluid\\ViewHelpers\\Debug'; |
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} |
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} |
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} |
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/** |
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* @param string $viewHelperClassName |
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* @return ViewHelperInterface |
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*/ |
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public function createViewHelperInstanceFromClassName($viewHelperClassName): ViewHelperInterface |
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{ |
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if ($this->container instanceof FailsafeContainer) { |
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// The install tool creates VH instances using makeInstance to not rely on symfony DI here, |
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// otherwise we'd have to have all install-tool used ones in ServiceProvider.php. However, |
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// none of the install tool used VH's use injection. |
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/** @var ViewHelperInterface $viewHelperInstance */ |
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$viewHelperInstance = GeneralUtility::makeInstance($viewHelperClassName); |
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return $viewHelperInstance; |
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} |
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if ($this->container->has($viewHelperClassName)) { |
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/** @var ViewHelperInterface $viewHelperInstance */ |
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$viewHelperInstance = $this->container->get($viewHelperClassName); |
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return $viewHelperInstance; |
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} |
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/** @var ViewHelperInterface $viewHelperInstance */ |
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// @deprecated since v11, will be removed with 12. Fallback if extensions VH has no Services.yaml, yet. |
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$viewHelperInstance = $this->objectManager->get($viewHelperClassName); |
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return $viewHelperInstance; |
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} |
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protected function getBackendUser(): ?BackendUserAuthentication |
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{ |
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return $GLOBALS['BE_USER'] ?? null; |
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} |
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} |
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TYPO3 /
TYPO3.CMS
