/**
* @param \TYPO3\Fluid\Core\Rendering\RenderingContextInterface $renderingContext
* @return boolean the boolean value
*/
public function evaluate(\TYPO3\Fluid\Core\Rendering\RenderingContextInterface $renderingContext)
{
if ($this->comparator !== NULL) {
return self::evaluateComparator($this->comparator, $this->leftSide->evaluate($renderingContext), $this->rightSide->evaluate($renderingContext));
} else {
$value = $this->syntaxTreeNode->evaluate($renderingContext);
return self::convertToBoolean($value);
}
}
/**
* Returns the name of the layout that is defined within the current template via <f:layout name="..." />
* If no layout is defined, this returns NULL
* This requires the current rendering context in order to be able to evaluate the layout name
*
* @param RenderingContextInterface $renderingContext
* @return string
* @throws View\Exception
*/
public function getLayoutName(RenderingContextInterface $renderingContext)
{
if (!$this->hasLayout()) {
return null;
}
$layoutName = $this->layoutNameNode->evaluate($renderingContext);
if (!empty($layoutName)) {
return $layoutName;
}
throw new View\Exception('The layoutName could not be evaluated to a string', 1296805368);
}
/**
* The compiled ViewHelper adds two new ViewHelper arguments: __thenClosure and __elseClosure.
* These contain closures which are be executed to render the then(), respectively else() case.
*
* @param string $argumentsVariableName
* @param string $renderChildrenClosureVariableName
* @param string $initializationPhpCode
* @param AbstractNode $syntaxTreeNode
* @param TemplateCompiler $templateCompiler
* @return string
* @Flow\Internal
*/
public function compile($argumentsVariableName, $renderChildrenClosureVariableName, &$initializationPhpCode, AbstractNode $syntaxTreeNode, TemplateCompiler $templateCompiler)
{
foreach ($syntaxTreeNode->getChildNodes() as $childNode) {
if ($childNode instanceof ViewHelperNode && $childNode->getViewHelperClassName() === \TYPO3\Fluid\ViewHelpers\ThenViewHelper::class) {
$childNodesAsClosure = $templateCompiler->wrapChildNodesInClosure($childNode);
$initializationPhpCode .= sprintf('%s[\'__thenClosure\'] = %s;', $argumentsVariableName, $childNodesAsClosure) . chr(10);
}
if ($childNode instanceof ViewHelperNode && $childNode->getViewHelperClassName() === \TYPO3\Fluid\ViewHelpers\ElseViewHelper::class) {
$childNodesAsClosure = $templateCompiler->wrapChildNodesInClosure($childNode);
$initializationPhpCode .= sprintf('%s[\'__elseClosure\'] = %s;', $argumentsVariableName, $childNodesAsClosure) . chr(10);
}
}
return TemplateCompiler::SHOULD_GENERATE_VIEWHELPER_INVOCATION;
}
/**
* @param AbstractNode $node
* @return array
* @see convert()
*/
public function convertListOfSubNodes(AbstractNode $node)
{
switch (count($node->getChildNodes())) {
case 0:
return array('initialization' => '', 'execution' => 'NULL');
case 1:
$converted = $this->convert(current($node->getChildNodes()));
return $converted;
default:
$outputVariableName = $this->variableName('output');
$initializationPhpCode = sprintf('%s = \'\';', $outputVariableName) . chr(10);
foreach ($node->getChildNodes() as $childNode) {
$converted = $this->convert($childNode);
$initializationPhpCode .= $converted['initialization'] . chr(10);
$initializationPhpCode .= sprintf('%s .= %s;', $outputVariableName, $converted['execution']) . chr(10);
}
return array('initialization' => $initializationPhpCode, 'execution' => $outputVariableName);
}
}