/**
* Parse the answer string and put the coordinates of the different draggables
* into the corresponding draggable objects. Creates new draggables objects
* if required.
*/
private function parseAnswer()
{
$this->draggables = array();
$answer = $this->userAnswer->getAnswer();
$parts = explode(';', $answer);
foreach ($parts as $part) {
$partArr = explode(',', $part);
if (count($partArr) == 3) {
$draggable = new CqDraggable(new DOMElement('null'), $this);
$draggable->setLocationXY($partArr[1], $partArr[2]);
$this->draggables[] = $draggable;
}
}
}
/**
* Overrides CqQuestionAbstract::loadXml()
*/
public function loadXml(DOMElement $dom)
{
parent::loadXml($dom);
module_load_include('inc.php', 'closedquestion', 'lib/XmlLib');
module_load_include('php', 'closedquestion', 'question/mapping/FactoryHotspot');
$this->hotspots = array();
$this->draggables = array();
$this->mappings = array();
$this->hints = array();
foreach ($dom->childNodes as $node) {
$name = drupal_strtolower($node->nodeName);
switch ($name) {
case 'text':
$this->text = cq_get_text_content($node, $this);
break;
case 'matchimg':
$this->matchImgUrl = $node->getAttribute('src');
$this->matchImgHeight = $node->getAttribute('height');
$this->matchImgWidth = $node->getAttribute('width');
foreach ($node->childNodes as $child) {
switch (drupal_strtolower($child->nodeName)) {
case 'hotspot':
$hotspot = cq_Hotspot_from_xml($child, $this);
if (is_object($hotspot)) {
if (isset($this->hotspots[$hotspot->getIdentifier()])) {
drupal_set_message(t('Hotspot identifier %identifier used more than once!', array('%identifier' => $hotspot->getIdentifier())), 'warning');
}
$this->hotspots[$hotspot->getIdentifier()] = $hotspot;
}
break;
case 'draggable':
$draggable = new CqDraggable($child, $this);
if (isset($this->draggables[$draggable->getIdentifier()])) {
drupal_set_message(t('Draggable identifier %identifier used more than once!', array('%identifier' => $draggable->getIdentifier())), 'warning');
}
$this->draggables[$draggable->getIdentifier()] = $draggable;
break;
}
}
break;
case 'mapping':
$map = new CqMapping();
$map->generateFromNode($node, $this);
$this->mappings[] = $map;
break;
case 'hint':
$this->hints[] = CqFeedback::newCqFeedback($node, $this);
break;
case 'default':
case 'startstate':
$this->startstate = $node->getAttribute('value');
break;
default:
if (!in_array($name, $this->knownElements)) {
drupal_set_message(t('Unknown node: @nodename', array('@nodename' => $node->nodeName)));
}
break;
}
}
$attribs = $dom->attributes;
$item = $attribs->getNamedItem('width');
if ($item !== NULL && $this->matchImgWidth == NULL) {
$this->matchImgWidth = (int) $item->value;
}
$item = $attribs->getNamedItem('height');
if ($item !== NULL && $this->matchImgHeight == NULL) {
$this->matchImgHeight = (int) $item->value;
}
if ($this->userAnswer->isEmpty()) {
$this->userAnswer->setAnswer($this->startstate);
}
$this->parseAnswer();
}
