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<?php |
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namespace TYPO3Fluid\Fluid\ViewHelpers; |
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/* |
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* This file belongs to the package "TYPO3 Fluid". |
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* See LICENSE.txt that was shipped with this package. |
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*/ |
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use TYPO3Fluid\Fluid\Core\Compiler\TemplateCompiler; |
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use TYPO3Fluid\Fluid\Core\Parser\SyntaxTree\ViewHelperNode; |
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use TYPO3Fluid\Fluid\Core\ViewHelper; |
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use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper; |
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use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileEmpty; |
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/** |
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* Case view helper that is only usable within the SwitchViewHelper. |
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* @see \TYPO3Fluid\Fluid\ViewHelpers\SwitchViewHelper |
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* |
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* @api |
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*/ |
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class CaseViewHelper extends AbstractViewHelper |
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{ |
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use CompileEmpty; |
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/** |
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* @var boolean |
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*/ |
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protected $escapeOutput = false; |
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/** |
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* @return void |
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*/ |
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public function initializeArguments() |
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{ |
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parent::initializeArguments(); |
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$this->registerArgument('value', 'mixed', 'Value to match in this case', true); |
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} |
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/** |
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* @return string the contents of this view helper if $value equals the expression of the surrounding switch view helper, otherwise an empty string |
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* @throws ViewHelper\Exception |
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* @api |
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*/ |
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public function render() |
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{ |
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$value = $this->arguments['value']; |
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$viewHelperVariableContainer = $this->renderingContext->getViewHelperVariableContainer(); |
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if (!$viewHelperVariableContainer->exists(SwitchViewHelper::class, 'switchExpression')) { |
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throw new ViewHelper\Exception('The "case" View helper can only be used within a switch View helper', 1368112037); |
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} |
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$switchExpression = $viewHelperVariableContainer->get(SwitchViewHelper::class, 'switchExpression'); |
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// non-type-safe comparison by intention |
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if ($switchExpression == $value) { |
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$viewHelperVariableContainer->addOrUpdate(SwitchViewHelper::class, 'break', true); |
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return $this->renderChildren(); |
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} |
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return ''; |
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} |
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} |
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TYPO3 /
Fluid
