// ===================================================================
/// Return the first shared parent between two visual script objects.
///
/// @param vsObj1 The first visual script object.
/// @param vsObj2 The second visual script object.
/// @return The first shared parent.
///
public static iCS_EditorObject GetCommonParent(iCS_EditorObject vsObj1, iCS_EditorObject vsObj2)
{
if (vsObj1 == null)
{
return(vsObj2);
}
if (vsObj2 == null)
{
return(vsObj1);
}
var l1 = BuildListOfParentNodes(vsObj1);
var l2 = BuildListOfParentNodes(vsObj2);
l1 = P.insertAt(vsObj1, l1.Length, l1);
l2 = P.insertAt(vsObj2, l2.Length, l2);
iCS_EditorObject commonParent = null;
for (int i = 0; i < l1.Length && i < l2.Length; ++i)
{
if (l1[i] != l2[i])
{
break;
}
commonParent = l1[i];
}
return(commonParent);
}