def _4dom_raiseIfAncestor(self, node):
"Helper function that raises if node is an ancestor of self or self."
n = self
if n is node:
raise HierarchyRequestErr()
if node.hasChildNodes():
while n is not None:
n = n.parentNode
if n is node:
raise HierarchyRequestErr()
def appendChild(self, node):
if hasattr(node, 'allowNoSvgChildNode'):
if not self.allowAllSvgNodesAsChildNodes:
if not (node.svgNodeType in self._allowedSvgChildNodes):
raise HierarchyRequestErr("%s cannot be child of %s" %
(repr(node), repr(self)))
else:
Element.appendChild(self, node)
Element.appendChild(self, node)
def _4dom_addSingle(self, node):
'''Make sure only one Element node is added to a Document'''
if node.nodeType == Node.ELEMENT_NODE:
self._4dom_validateNode(node)
if node.parentNode != None:
node.parentNode.removeChild(node)
if self.__dict__['__documentElement']:
raise HierarchyRequestErr()
self.__dict__['__documentElement'] = node
if self.__dict__['__doctype']:
self.__dict__['__doctype']._4dom_setName(node.nodeName)
def replaceChild(self, newChild, oldChild):
if newChild.nodeType != Node.DOCUMENT_FRAGMENT_NODE:
root = self.__dict__['__documentElement']
if root in [oldChild, newChild]:
self.__dict__['__documentElement'] = None
else:
raise HierarchyRequestErr()
replaced = FtNode.replaceChild(self, newChild, oldChild)
if newChild.nodeType == Node.ELEMENT_NODE:
self.__dict__['__documentElement'] = newChild
if self.__dict__['__doctype']:
self.__dict__['__doctype']._4dom_setName(newChild.nodeName)
return replaced
def appendChild(self, node):
raise HierarchyRequestErr("%s does not support child node operations" %
(repr(self)))
def replaceChild(self, newChild, oldChild):
raise HierarchyRequestErr("%s does not support child node operations" %
(repr(self)))
def appendChild(self, newChild):
raise HierarchyRequestErr(self.nodeName + " nodes cannot have children")
def removeChild(self, oldChild):
raise HierarchyRequestErr(self.nodeName + " nodes cannot have children")
def insertBefore(self, newChild, refChild):
raise HierarchyRequestErr(self.nodeName + " nodes cannot have children")
def _4dom_validateNode(self, newNode):
if not newNode.nodeType in self.__class__._allowedChildren:
raise HierarchyRequestErr()
self._4dom_raiseIfAncestor(newNode)
if self.ownerDocument != newNode.ownerDocument:
raise WrongDocumentErr()