/**
* Adopts a node from a (possibly) different context to this context
*
* Check if a node variant already exists for this context and return it if found. Otherwise a new node variant for
* this context is created.
*
* @param NodeInterface $node The node with a different context. If the context of the given node is the same as this context the operation will have no effect.
* @return NodeInterface A new or existing node that matches this context
*/
public function adoptNode(NodeInterface $node)
{
if ($node->getContext() === $this) {
return $node;
}
$existingNode = $this->getNodeByIdentifier($node->getIdentifier());
if ($existingNode !== NULL) {
return $existingNode;
}
return $node->createVariantForContext($this);
}
