/**
* Load assets from the custom elements (CustomInteraction, PCI, PIC)
* @param Element $element the custom element
*/
private function loadCustomElementAssets(Element $element)
{
if ($this->getGetCustomElementDefinition()) {
if ($element instanceof PortableCustomInteraction) {
$this->assets['PCI'][$element->getTypeIdentifier()] = $element;
}
if ($element instanceof PortableInfoControl) {
$this->assets['PIC'][$element->getTypeIdentifier()] = $element;
}
}
$xmls = array();
if ($element instanceof PortableCustomInteraction || $element instanceof PortableInfoControl) {
//some portable elements contains htmlentitied markup in their properties...
$xmls = $this->getXmlProperties($element->getProperties());
}
//parse and extract assets from markup using XPATH
if ($element instanceof CustomInteraction || $element instanceof InfoControl) {
// http://php.net/manual/fr/simplexmlelement.xpath.php#116622
$sanitizedMarkup = str_replace('xmlns=', 'ns=', $element->getMarkup());
$xmls[] = new SimpleXMLElement($sanitizedMarkup);
$this->loadCustomElementPropertiesAssets($element->getProperties());
/** @var SimpleXMLElement $xml */
foreach ($xmls as $xml) {
foreach ($xml->xpath('//img') as $img) {
$this->addAsset('img', (string) $img['src']);
}
foreach ($xml->xpath('//video') as $video) {
$this->addAsset('video', (string) $video['src']);
}
foreach ($xml->xpath('//audio') as $audio) {
$this->addAsset('audio', (string) $audio['src']);
}
}
}
}
/**
* Parse individual portable element into the given portable model
* @param PortableElementModel $model
* @param Element $portableElement
* @throws \common_Exception
* @throws PortableElementInconsistencyModelException
*/
protected function parsePortableElement(PortableElementModel $model, Element $portableElement)
{
$typeId = $portableElement->getTypeIdentifier();
$libs = [];
$requiredLibFiles = [];
//Adjust file resource entries where {QTI_NS}/xxx/yyy is equivalent to {QTI_NS}/xxx/yyy.js
foreach ($portableElement->getLibraries() as $lib) {
if (preg_match('/^' . $typeId . '.*\\.js$/', $lib) && substr($lib, -3) != '.js') {
//filter shared stimulus
$requiredLibFiles[] = $lib . '.js';
//amd modules
$libs[] = $lib . '.js';
} else {
$libs[] = $lib;
}
}
$data = ['typeIdentifier' => $typeId, 'version' => $portableElement->getVersion(), 'label' => $typeId, 'short' => $typeId, 'runtime' => ['hook' => $portableElement->getEntryPoint(), 'libraries' => $libs, 'stylesheets' => $portableElement->getStylesheets(), 'mediaFiles' => $portableElement->getMediaFiles()]];
/** @var PortableElementObject $portableObject */
$portableObject = $model->createDataObject($data);
$lastVersionModel = $this->getService()->getPortableElementByIdentifier($portableObject->getModel()->getId(), $portableObject->getTypeIdentifier());
if (!is_null($lastVersionModel) && intval($lastVersionModel->getVersion()) != intVal($portableObject->getVersion())) {
//@todo return a user exception to inform user of incompatible pci version found and that an item update is required
throw new \common_Exception('Unable to import pci asset because pci is not compatible. ' . 'Current version is ' . $lastVersionModel->getVersion() . ' and imported is ' . $portableObject->getVersion());
}
$this->portableObjects[$typeId] = $portableObject;
$files = array_merge([$portableObject->getRuntimeKey('hook')], $requiredLibFiles, $portableObject->getRuntimeKey('stylesheets'), $portableObject->getRuntimeKey('mediaFiles'));
$this->requiredFiles = array_merge($this->requiredFiles, array_fill_keys($files, $typeId));
}