/**
* Inserts a node to the childNodes list of the current node
* @param Object The node to be inserted
* @param Object The node before which the insertion is to occur
* @return Object The inserted node
*/
function &insertBefore(&$newChild, &$refChild)
{
$type = $newChild->nodeType;
if ($type == DOMIT_ELEMENT_NODE) {
if ($this->documentElement == null) {
parent::insertBefore($newChild);
$this->setDocumentElement($newChild);
} else {
//error thrown if documentElement already exists!
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot have more than one root node (documentElement) in a DOMIT_Document.');
}
} else {
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot insert a node of type ' . get_class($newChild) . ' to a DOMIT_Document.');
}
return $newChild;
}
/**
* Inserts a node to the childNodes list of the current node
* @param Object The node to be inserted
* @param Object The node before which the insertion is to occur
* @return Object The inserted node
*/
function &insertBefore(&$newChild, &$refChild)
{
$type = $newChild->nodeType;
if ($this->nodeType == DOMIT_DOCUMENT_FRAGMENT_NODE) {
$total = $newChild->childCount;
for ($i = 0; $i < $total; $i++) {
$currChild =& $newChild->childNodes[$i];
$this->insertBefore($currChild, $refChild);
}
} else {
if ($type == DOMIT_ELEMENT_NODE) {
if ($this->documentElement == null) {
parent::insertBefore($newChild);
$this->setDocumentElement($newChild);
} else {
//error thrown if documentElement already exists!
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot have more than one root node (documentElement) in a DOMIT_Document.');
}
} else {
if ($type == DOMIT_PROCESSING_INSTRUCTION_NODE) {
parent::insertBefore($newChild);
} else {
if ($type == DOMIT_DOCUMENT_TYPE_NODE) {
if ($this->doctype == null) {
parent::insertBefore($newChild);
} else {
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot have more than one doctype node in a DOMIT_Document.');
}
} else {
DOMIT_DOMException::raiseException(DOMIT_HIERARCHY_REQUEST_ERR, 'Cannot insert a node of type ' . get_class($newChild) . ' to a DOMIT_Document.');
}
}
}
}
return $newChild;
}
