/**
* Unmarshall a DOMElement object corresponding to a SliderInteraction element.
*
* @param DOMElement $element A DOMElement object.
* @return QtiComponent A SliderInteraction object.
* @throws UnmarshallingException
*/
protected function unmarshall(DOMElement $element)
{
if (($responseIdentifier = self::getDOMElementAttributeAs($element, 'responseIdentifier')) !== null) {
if (($lowerBound = self::getDOMElementAttributeAs($element, 'lowerBound', 'float')) !== null) {
if (($upperBound = self::getDOMElementAttributeAs($element, 'upperBound', 'float')) !== null) {
$component = new SliderInteraction($responseIdentifier, $lowerBound, $upperBound);
$promptElts = self::getChildElementsByTagName($element, 'prompt');
if (count($promptElts) > 0) {
$promptElt = $promptElts[0];
$prompt = $this->getMarshallerFactory()->createMarshaller($promptElt)->unmarshall($promptElt);
$component->setPrompt($prompt);
}
if (($step = self::getDOMElementAttributeAs($element, 'step', 'integer')) !== null) {
$component->setStep($step);
}
if (($stepLabel = self::getDOMElementAttributeAs($element, 'stepLabel', 'boolean')) !== null) {
$component->setStepLabel($stepLabel);
}
if (($orientation = self::getDOMElementAttributeAs($element, 'orientation')) !== null) {
try {
$component->setOrientation(Orientation::getConstantByName($orientation));
} catch (InvalidArgumentException $e) {
$msg = "The value of the 'orientation' attribute of the 'sliderInteraction' is invalid.";
throw new UnmarshallingException($msg, $element, $e);
}
}
if (($reverse = self::getDOMElementAttributeAs($element, 'reverse', 'boolean')) !== null) {
$component->setReverse($reverse);
}
if (($xmlBase = self::getXmlBase($element)) !== false) {
$component->setXmlBase($xmlBase);
}
self::fillBodyElement($component, $element);
return $component;
} else {
$msg = "The mandatory 'upperBound' attribute is missing from the 'sliderInteraction' element.";
throw new UnmarshallingException($msg, $element);
}
} else {
$msg = "The mandatory 'lowerBound' attribute is missing from the 'sliderInteraction' element.";
throw new UnmarshallingException($msg, $element);
}
} else {
$msg = "The mandatory 'responseIdentifier' attribute is missing from the 'sliderInteraction' element.";
throw new UnmarshallingException($msg, $element);
}
}
public function testMarshall()
{
$sliderInteraction = new SliderInteraction('RESPONSE', 0.0, 100.0, 'my-slider', 'slide-it');
$sliderInteraction->setStep(1);
$sliderInteraction->setStepLabel(true);
$sliderInteraction->setOrientation(Orientation::VERTICAL);
$sliderInteraction->setReverse(true);
$prompt = new Prompt();
$prompt->setContent(new FlowStaticCollection(array(new TextRun('Prompt...'))));
$sliderInteraction->setPrompt($prompt);
$element = $this->getMarshallerFactory('2.1.0')->createMarshaller($sliderInteraction)->marshall($sliderInteraction);
$dom = new DOMDocument('1.0', 'UTF-8');
$element = $dom->importNode($element, true);
$this->assertEquals('<sliderInteraction id="my-slider" class="slide-it" responseIdentifier="RESPONSE" lowerBound="0" upperBound="100" step="1" stepLabel="true" orientation="vertical" reverse="true"><prompt>Prompt...</prompt></sliderInteraction>', $dom->saveXML($element));
}
