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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""provides required enhancements to the DOM libraries, which are applied by importing this"""
# Copyright 2005 St James Software
#
# This file is part of jToolkit.
#
# jToolkit is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# jToolkit is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with jToolkit; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from xml.dom import minidom
from xml.dom import expatbuilder
Attr = minidom.Attr
class AttrWithID(Attr):
"""Attr object that checks if its name is id and makes itself a magic id"""
def __init__(self, *args, **kwargs):
Attr.__init__(self, *args, **kwargs)
if self.name == 'id':
self.__dict__['_is_id'] = True
def unlink(self):
"""unlink the Attr from the ownerElement/Document, preventing our _is_id from causing problems"""
if self._is_id and self.ownerDocument is None:
self._is_id = False
Attr.unlink(self)
self._is_id = True
else:
Attr.unlink(self)
minidom.Attr = AttrWithID
ExpatBuilderNS = expatbuilder.ExpatBuilderNS
class ExpatBuilderNSWithID(ExpatBuilderNS):
"""ExpatBuilder that checks for magic Attr ids"""
def start_element_handler(self, name, attributes):
ExpatBuilderNS.start_element_handler(self, name, attributes)
node = self.curNode
for aname, a in node._attrs.iteritems():
if a._is_id:
node._magic_id_nodes += 1
node.ownerDocument._magic_id_count += 1
node.ownerDocument._id_cache.clear()
node.ownerDocument._id_search_stack = None
expatbuilder.ExpatBuilderNS = ExpatBuilderNSWithID
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