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<?php |
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/* |
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* 2016 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\ViewHelpers\Service; |
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use Romm\Formz\Configuration\Form\Field\Field; |
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use Romm\Formz\Core\Core; |
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use Romm\Formz\Exceptions\ContextNotFoundException; |
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use Romm\Formz\ViewHelpers\FieldViewHelper; |
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use TYPO3\CMS\Core\SingletonInterface; |
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use TYPO3\CMS\Fluid\View\StandaloneView; |
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/** |
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* Contains methods to help view helpers to manipulate data concerning the |
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* current field. |
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*/ |
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class FieldService implements SingletonInterface |
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{ |
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/** |
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* @var Field |
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*/ |
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protected $currentField; |
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/** |
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* @var array |
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*/ |
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protected $fieldOptions = []; |
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/** |
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* Unique instance of view, stored to save some performance. |
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* |
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* @var StandaloneView |
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*/ |
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protected $view; |
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/** |
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* Reset every state that can be used by this service. |
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*/ |
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public function resetState() |
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{ |
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$this->currentField = null; |
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} |
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/** |
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* Checks that the `FieldViewHelper` has been called. If not, an exception |
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* is thrown. |
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* |
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* @return bool |
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*/ |
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public function fieldContextExists() |
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{ |
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return $this->currentField instanceof Field; |
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} |
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/** |
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* Returns the current field which was defined by the `FieldViewHelper`. |
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* |
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* Returns null if no current field was found. |
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* |
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* @return Field|null |
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*/ |
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public function getCurrentField() |
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{ |
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return $this->currentField; |
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} |
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/** |
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* @param Field $field |
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*/ |
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public function setCurrentField(Field $field) |
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{ |
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$this->currentField = $field; |
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} |
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/** |
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* @param string $name |
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* @param mixed $value |
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*/ |
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public function setFieldOption($name, $value) |
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{ |
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$this->fieldOptions[$name] = $value; |
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} |
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/** |
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* @return array |
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*/ |
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public function getFieldOptions() |
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{ |
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return $this->fieldOptions; |
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} |
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/** |
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* @return $this |
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*/ |
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public function resetFieldOptions() |
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{ |
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$this->fieldOptions = []; |
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return $this; |
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} |
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/** |
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* Unset the current field. |
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* |
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* @return $this |
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*/ |
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public function removeCurrentField() |
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{ |
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$this->currentField = null; |
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return $this; |
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} |
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/** |
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* Checks that the `FieldViewHelper` has been called. If not, an exception |
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* is thrown. |
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* |
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* @throws \Exception |
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*/ |
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public function checkIsInsideFieldViewHelper() |
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{ |
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if (false === $this->fieldContextExists()) { |
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throw new ContextNotFoundException( |
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'The view helper "' . get_called_class() . '" must be used inside the view helper "' . FieldViewHelper::class . '".', |
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1465243085 |
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); |
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} |
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} |
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/** |
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* @return StandaloneView |
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*/ |
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public function getView() |
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{ |
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if (null === $this->view) { |
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$this->view = Core::instantiate(StandaloneView::class); |
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} |
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return $this->view; |
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} |
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} |
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romm /
formz
