/**
* Handles additional arguments, sorting out any data-
* prefixed tag attributes and assigning them. Then passes
* the unassigned arguments to the parent class' method,
* which in the default implementation will throw an error
* about "undeclared argument used".
*
* @param array $arguments
* @return void
*/
public function handleAdditionalArguments(array $arguments)
{
$unassigned = array();
foreach ($arguments as $argumentName => $argumentValue) {
if (strpos($argumentName, 'data-') === 0) {
$this->tag->addAttribute($argumentName, $argumentValue);
} else {
$unassigned[$argumentName] = $argumentValue;
}
}
parent::handleAdditionalArguments($unassigned);
}
/**
* @return void
*/
public function initializeArguments()
{
parent::initializeArguments();
// @deprecated since 2.0 use the "image" argument instead
$this->registerArgument('asset', AssetInterface::class, 'The image to be rendered - DEPRECATED, use the "image" argument instead', false);
}
/**
* @param AbstractViewHelper $viewHelper
*/
protected function injectDependenciesIntoViewHelper(AbstractViewHelper $viewHelper)
{
$viewHelper->setRenderingContext($this->renderingContext);
$viewHelper->setArguments($this->arguments);
if ($viewHelper instanceof AbstractTagBasedViewHelper) {
$viewHelper->injectTagBuilder($this->tagBuilder);
}
}
/**
* 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 $argumentsName
* @param string $closureName
* @param string $initializationPhpCode
* @param ViewHelperNode $node
* @param TemplateCompiler $compiler
* @return string
*/
public function compile($argumentsName, $closureName, &$initializationPhpCode, ViewHelperNode $node, TemplateCompiler $compiler)
{
$thenViewHelperEncountered = $elseViewHelperEncountered = false;
foreach ($node->getChildNodes() as $childNode) {
if ($childNode instanceof ViewHelperNode) {
$viewHelperClassName = $childNode->getViewHelperClassName();
if (substr($viewHelperClassName, -14) === 'ThenViewHelper') {
$thenViewHelperEncountered = true;
$childNodesAsClosure = $compiler->wrapChildNodesInClosure($childNode);
$initializationPhpCode .= sprintf('%s[\'__thenClosure\'] = %s;', $argumentsName, $childNodesAsClosure) . chr(10);
} elseif (substr($viewHelperClassName, -14) === 'ElseViewHelper') {
$elseViewHelperEncountered = true;
$childNodesAsClosure = $compiler->wrapChildNodesInClosure($childNode);
$initializationPhpCode .= sprintf('%s[\'__elseClosures\'][] = %s;', $argumentsName, $childNodesAsClosure) . chr(10);
$arguments = $childNode->getArguments();
if (isset($arguments['if'])) {
// The "else" has an argument, indicating it has a secondary (elseif) condition.
// Compile a closure which will evaluate the condition.
$elseIfConditionAsClosure = $compiler->wrapViewHelperNodeArgumentEvaluationInClosure($childNode, 'if');
$initializationPhpCode .= sprintf('%s[\'__elseifClosures\'][] = %s;', $argumentsName, $elseIfConditionAsClosure) . chr(10);
}
}
}
}
if (!$thenViewHelperEncountered && !$elseViewHelperEncountered && !isset($node->getArguments()['then'])) {
$initializationPhpCode .= sprintf('%s[\'__thenClosure\'] = %s;', $argumentsName, $closureName) . chr(10);
}
return parent::compile($argumentsName, $closureName, $initializationPhpCode, $node, $compiler);
}