public function clearParentElementWithHash(IdmlElement $element, $parentHashValue)
{
$bCleared = false;
$parentElement = $element->parentIdmlObject();
while (!$bCleared && is_object($parentElement)) {
if (IdmlPxeHelper::getPxeHash($parentElement) == $parentHashValue) {
IdmlPxeHelper::clearPxeData($parentElement);
$bCleared = true;
}
$parentElement = $parentElement->parentIdmlObject();
}
return $bCleared;
}
/**
* Walk the IDML tree back to the IdmlPage, getting all ancestral objects
* @param IdmlElement $idmlObject
* @param string $stopAt The classname of the highest Idml object that we are interested in, should be 'IdmlPage' or 'IdmlStory'
* @return array[IdmlElement]
*/
public function getAncestors($idmlObject, $stopAt)
{
$stack = array();
// start by skipping the current element
$obj = $idmlObject->parentIdmlObject();
// now collect all ancestors: parent, grandparent, ... back to (but not including) the IdmlPage/IdmlStory
while (!is_null($obj) && get_class($obj) != $stopAt) {
$stack[] = $obj;
$obj = $obj->parentIdmlObject();
}
return $stack;
}
/**
* Determines if an element has an XmlElement as a parent somewhere
* @param IdmlElement $element
* @return boolean
*/
public static function hasXmlElementParent(IdmlElement $element)
{
$hasParent = false;
if ($element->parentIdmlObject()) {
$parent = $element->parentIdmlObject();
while (is_object($parent) && !is_a($parent, "IdmlXmlElement")) {
$parent = $parent->parentIdmlObject();
}
if (is_object($parent) && is_a($parent, "IdmlXmlElement") && $parent->markupTag != "XMLTag/Story") {
$hasParent = true;
}
}
return $hasParent;
}
