1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
########################################################################
#
# File Name: Attr.py
#
# Documentation: http://docs.4suite.com/4DOM/Attr.py.html
#
"""
DOM Level 2 Attribute Node
WWW: http://4suite.com/4DOM e-mail: support@4suite.com
Copyright (c) 2000 Fourthought Inc, USA. All Rights Reserved.
See http://4suite.com/COPYRIGHT for license and copyright information
"""
from xml.dom import Node
from DOMImplementation import implementation
from FtNode import FtNode
from Event import MutationEvent
class Attr(FtNode):
nodeType = Node.ATTRIBUTE_NODE
_allowedChildren = [Node.TEXT_NODE,
Node.ENTITY_REFERENCE_NODE
]
def __init__(self, ownerDocument, name, namespaceURI, prefix, localName):
FtNode.__init__(self, ownerDocument, namespaceURI, prefix, localName)
self.__dict__['__nodeName'] = name
self._ownerElement = None
### Attribute Methods ###
def _get_name(self):
return self.__dict__['__nodeName']
def _get_specified(self):
#True if this attribute was explicitly given a value in the document
return self._get_value() != ''
def _get_value(self):
return reduce(lambda value, child:
value + child.nodeValue,
self.childNodes, '')
def _set_value(self, value):
old_value = self.value
if value != old_value or len(self.childNodes) > 1:
# Remove previous childNodes
while self.firstChild:
self.removeChild(self.firstChild)
if value:
self.appendChild(self.ownerDocument.createTextNode(value))
owner = self._ownerElement
if owner:
owner._4dom_fireMutationEvent('DOMAttrModified',
relatedNode=self,
prevValue=old_value,
newValue=value,
attrName=self.name,
attrChange=MutationEvent.MODIFICATION)
owner._4dom_fireMutationEvent('DOMSubtreeModified')
def _get_ownerElement(self):
return self._ownerElement
### Overridden Methods ###
def _get_nodeValue(self):
return self._get_value()
def _set_nodeValue(self, value):
self._set_value(value)
def __repr__(self):
return '<Attribute Node at %x: Name="%s", Value="%s">' % (
id(self),
self.name,
self.value
)
### Helper Functions For Cloning ###
def _4dom_clone(self, owner):
a = self.__class__(owner,
self.nodeName,
self.namespaceURI,
self.prefix,
self.localName)
for child in self.childNodes:
a.appendChild(child._4dom_clone(owner))
return a
def __getinitargs__(self):
return (self.ownerDocument,
self.nodeName,
self.namespaceURI,
self.prefix,
self.localName
)
def __getstate__(self):
return self.childNodes
def __setstate__(self, children):
self.childNodes.extend(list(children))
for i in range(1, len(children)):
children[i]._4dom_setHierarchy(self, children[i-1], None)
### Internal Methods ###
def _4dom_setOwnerElement(self, owner):
self.__dict__['_ownerElement'] = owner
### Attribute Access Mappings ###
_readComputedAttrs = FtNode._readComputedAttrs.copy()
_readComputedAttrs.update({
'name':_get_name,
'specified':_get_specified,
'ownerElement':_get_ownerElement,
'value':_get_value,
'nodeValue':_get_value
})
_writeComputedAttrs = FtNode._writeComputedAttrs.copy()
_writeComputedAttrs.update({
'value':_set_value,
'nodeValue':_set_value
})
# Create the read-only list of attributes
_readOnlyAttrs = filter(lambda k,m=_writeComputedAttrs: not m.has_key(k),
FtNode._readOnlyAttrs + _readComputedAttrs.keys())
|
