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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\JavaScript; |
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use Romm\Formz\AssetHandler\AbstractAssetHandler; |
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use Romm\Formz\Condition\Parser\ConditionTree; |
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use Romm\Formz\Configuration\Form\Field\Field; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* This asset handler generates the JavaScript code used the activate the |
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* validation rules of a field. Indeed, when a field is hidden, it is probably |
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* not useful to let JavaScript run the validation rules. |
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*/ |
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class FieldsActivationJavaScriptAssetHandler extends AbstractAssetHandler |
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{ |
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/** |
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* Main function of this asset handler. |
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* |
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* @return string |
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*/ |
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public function getFieldsActivationJavaScriptCode() |
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{ |
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$javaScriptBlocks = []; |
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$formConfiguration = $this->getFormObject()->getConfiguration(); |
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foreach ($formConfiguration->getFields() as $field) { |
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$fieldConditionExpression = []; |
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$javaScriptTree = $this->getConditionTreeForField($field)->getJavaScriptConditions(); |
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if (false === empty($javaScriptTree)) { |
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foreach ($javaScriptTree as $node) { |
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$fieldConditionExpression[] = 'flag = flag || (' . $node . ');'; |
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} |
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$javaScriptBlocks[] = $this->getSingleFieldActivationConditionFunction($field, $fieldConditionExpression); |
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} |
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} |
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$javaScriptBlocks = implode(CRLF, $javaScriptBlocks); |
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$formName = GeneralUtility::quoteJSvalue($this->getFormObject()->getName()); |
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return <<<JS |
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(function() { |
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Formz.Form.get( |
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$formName, |
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function(form) { |
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var field = null; |
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$javaScriptBlocks |
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} |
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); |
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})(); |
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JS; |
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} |
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/** |
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* This function is just here to make the class more readable. |
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* |
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* @param Field $field Field instance. |
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* @param array $fieldConditionExpression Array containing the JavaScript condition expression for the field. |
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* @return string |
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*/ |
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protected function getSingleFieldActivationConditionFunction(Field $field, $fieldConditionExpression) |
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{ |
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$fieldName = GeneralUtility::quoteJSvalue($field->getFieldName()); |
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$fieldConditionExpression = implode(CRLF . str_repeat(' ', 20), $fieldConditionExpression); |
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return <<<JS |
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field = form.getFieldByName($fieldName); |
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if (null !== field) { |
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field.addActivationCondition( |
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'__auto', |
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function (field, continueValidation) { |
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var flag = false; |
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$fieldConditionExpression |
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continueValidation(flag); |
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} |
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); |
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} |
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JS; |
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} |
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/** |
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* @param Field $field |
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* @return ConditionTree |
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*/ |
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protected function getConditionTreeForField(Field $field) |
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{ |
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return $this->conditionProcessor->getActivationConditionTreeForField($field); |
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} |
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} |
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romm /
formz
