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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\Condition\Parser\Tree; |
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use Romm\Formz\Condition\Parser\Node\ActivationDependencyAwareInterface; |
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use Romm\Formz\Condition\Parser\Node\NodeInterface; |
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use Romm\Formz\Condition\Processor\ConditionProcessor; |
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use Romm\Formz\Condition\Processor\DataObject\PhpConditionDataObject; |
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use Romm\Formz\Form\Definition\Field\Activation\ActivationInterface; |
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use TYPO3\CMS\Extbase\Error\Result; |
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/** |
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* Tree built with instances of `NodeInterface` that represents a condition |
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* instance. |
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* |
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* It can be used to get CSS, JavaScript or PHP results of the condition. |
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*/ |
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class ConditionTree |
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{ |
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/** |
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* @var NodeInterface |
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*/ |
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private $rootNode; |
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/** |
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* @var Result |
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*/ |
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private $validationResult; |
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/** |
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* @var bool |
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*/ |
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private $dependenciesWereInjected = false; |
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/** |
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* @param NodeInterface $rootNode |
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* @param Result $validationResult |
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*/ |
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public function __construct(NodeInterface $rootNode, Result $validationResult = null) |
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{ |
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$this->rootNode = $rootNode; |
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$this->validationResult = $validationResult ?: new Result; |
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$this->rootNode->setTree($this); |
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} |
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/** |
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* Allows to go through all the nodes and sub-nodes of the tree. The |
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* callback is called for every node, with a unique argument: the node |
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* instance. |
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* |
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* @param callable $callback |
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*/ |
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public function alongNodes(callable $callback) |
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{ |
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$this->rootNode->along($callback); |
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} |
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/** |
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* @param ConditionProcessor $conditionProcessor |
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* @param ActivationInterface $activation |
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* @return $this |
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*/ |
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public function injectDependencies(ConditionProcessor $conditionProcessor, ActivationInterface $activation) |
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{ |
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if (false === $this->dependenciesWereInjected) { |
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$this->dependenciesWereInjected = true; |
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// Looping on nodes to detect which ones have a dependency to the activation. |
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$this->alongNodes(function (NodeInterface $node) use ($conditionProcessor, $activation) { |
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if ($node instanceof ActivationDependencyAwareInterface) { |
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$node->injectDependencies($conditionProcessor, $activation); |
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} |
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}); |
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} |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getCssConditions() |
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{ |
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return $this->rootNode->getCssResult(); |
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} |
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/** |
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* @return array |
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*/ |
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public function getJavaScriptConditions() |
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{ |
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return $this->rootNode->getJavaScriptResult(); |
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} |
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/** |
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* @param PhpConditionDataObject $dataObject |
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* @return bool |
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*/ |
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public function getPhpResult(PhpConditionDataObject $dataObject) |
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{ |
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return $this->rootNode->getPhpResult($dataObject); |
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} |
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/** |
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* @return Result |
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*/ |
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public function getValidationResult() |
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{ |
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return $this->validationResult; |
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} |
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/** |
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* Resetting the dependencies injection. |
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*/ |
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public function __wakeup() |
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{ |
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$this->dependenciesWereInjected = false; |
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} |
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} |
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romm /
formz
