/**
* Unmarshall a DOMElement object corresponding to a MediaInteraction element.
*
* @param DOMElement $element A DOMElement object.
* @return QtiComponent A MediaInteraction object.
* @throws UnmarshallingException
*/
protected function unmarshall(DOMElement $element)
{
if (($responseIdentifier = self::getDOMElementAttributeAs($element, 'responseIdentifier')) !== null) {
if (($autostart = self::getDOMElementAttributeAs($element, 'autostart', 'boolean')) !== null) {
$objectElts = self::getChildElementsByTagName($element, 'object');
if (count($objectElts) > 0) {
$objectElt = $objectElts[0];
$object = $this->getMarshallerFactory()->createMarshaller($objectElt)->unmarshall($objectElt);
$component = new MediaInteraction($responseIdentifier, $autostart, $object);
$promptElts = self::getChildElementsByTagName($element, 'prompt');
if (count($promptElts) > 0) {
$promptElt = $promptElts[0];
$prompt = $this->getMarshallerFactory()->createMarshaller($promptElt)->unmarshall($promptElt);
$component->setPrompt($prompt);
}
if (($minPlays = self::getDOMElementAttributeAs($element, 'minPlays', 'integer')) !== null) {
$component->setMinPlays($minPlays);
}
if (($maxPlays = self::getDOMElementAttributeAs($element, 'maxPlays', 'integer')) !== null) {
$component->setMaxPlays($maxPlays);
}
if (($loop = self::getDOMElementAttributeAs($element, 'loop', 'boolean')) !== null) {
$component->setLoop($loop);
}
if (($xmlBase = self::getXmlBase($element)) !== false) {
$component->setXmlBase($xmlBase);
}
self::fillBodyElement($component, $element);
return $component;
} else {
$msg = "A 'mediaInteraction' element must contain exactly one 'object' element, none given.";
throw new UnmarshallingException($msg, $element);
}
} else {
$msg = "The mandatory 'autostart' attribute is missing from the 'mediaInteraction' element.";
throw new UnmarshallingException($msg, $element);
}
} else {
$msg = "The mandatory 'responseIdentifier' attribute is missing from the 'mediaInteraction' element.";
throw new UnmarshallingException($msg, $element);
}
}
public function testMarshall()
{
$object = new Object('my-video.mp4', 'video/mp4');
$object->setWidth(400);
$object->setHeight(300);
$mediaInteraction = new MediaInteraction('RESPONSE', false, $object, 'my-media');
$mediaInteraction->setMinPlays(1);
$mediaInteraction->setMaxPlays(2);
$mediaInteraction->setLoop(true);
$prompt = new Prompt();
$prompt->setContent(new FlowStaticCollection(array(new TextRun('Prompt...'))));
$mediaInteraction->setPrompt($prompt);
$element = $this->getMarshallerFactory('2.1.0')->createMarshaller($mediaInteraction)->marshall($mediaInteraction);
$dom = new DOMDocument('1.0', 'UTF-8');
$element = $dom->importNode($element, true);
$this->assertEquals('<mediaInteraction id="my-media" responseIdentifier="RESPONSE" autostart="false" minPlays="1" maxPlays="2" loop="true"><prompt>Prompt...</prompt><object data="my-video.mp4" type="video/mp4" width="400" height="300"/></mediaInteraction>', $dom->saveXML($element));
}
