[1] [[manakai DOM Extensions]] > Extensions to
existing interfaces > Extensions to the
[CODE(DOMi)@en[[[Node]]]] interface


[31] The description for the 
[CODE(DOMi)@en[[[ElementTypeDefinition]]]] and
[CODE(DOMi)@en[[[AttributeDefinition]]]] interfaces
includes the interaction of existing attributes
and methods of [CODE(DOMi)@en[[[Node]]]] interface
and these new node types.


** New node types

[23] Two constants are added to the
definition group [CODE(DOM)@en[[[NodeType]]]]:
- [10] 
The constant [CODE(DOMc)@en[[[ELEMENT_TYPE_DEFINITION_NODE]]]],
[CODE(IDL)[[[81001]]]] in [CODE(IDL)@en[[[unsigned short]]]],
represents that the [CODE(DOMi)@en[[[Node]]]]
is an [CODE(DOMi)@en[[[ElementTypeDefinition]]]].
- [11] 
The constant [CODE(DOMc)@en[[[ATTRIBUTE_DEFINITION_NODE]]]],
[CODE(IDL)[[[81002]]]] in [CODE(IDL)@en[[[unsigned short]]]],
represents that the [CODE(DOMi)@en[[[Node]]]]
is an [CODE(DOMi)@en[[[AttributeDefinition]]]].


** New element type accessors

[9] The [DFN@en[[CODE(DOMa)@en[[[manakaiLocalName]]]] attribute]]
contains the [Q@en[real]] local name of the
[CODE(DOMi)@en[[[Node]]]].

The type of this attribute is [CODE(DOMi)@en[[[DOMString]]]].
This attribute is read-only.

The getter of this attribute [['''MUST''']]
return the same value as the [CODE(DOMa)@en[[[localName]]]]
on the same [CODE(DOMi)@en[[[Node]]]],
except when the [CODE(DOMa)@en[[[localName]]]] getter
is so defined that it must return the canonicalized
version of [Q@en[real]] local name, in that case
the [Q@en[real]] local name [['''MUST''']] be returned.

;; [81005] Since it has clarified that [CODE(DOMa)@en[[[localName]]]] always returns the original local name
of the element, use of the [CODE(DOMa)@en[[[manakaiLocalName]]]] attribute is discouraged.

[5] The [DFN@en[[CODE(DOMa)@en[[[manakaiExpandedURI]]]] attribute]]
contans the expanded URI, i.e. the concatenation
of the namespace URI and the local name of the 
[CODE(DOMi)@en[[[Node]]]].

The type of this attribute is [CODE(DOMi)@en[[[DOMString]]]].
This attribute is read-only.

= If the [CODE(DOMa)@en[[[manakaiLocalName]]]] of the
[CODE(DOMi)@en[[[Node]]]] is [CODE(IDL)@en[[[null]]]],
then the getter [['''MUST''']] return [CODE(IDL)@en[[[null]]]].
= Otherwise, if the [CODE(DOMa)@en[[[namespaceURI]]]]
of the [CODE(DOMi)@en[[[Node]]]] is [CODE(IDL)@en[[[null]]]],
then the getter [['''MUST''']] return the
[CODE(DOMa)@en[[[manakaiLocalName]]]] of the 
[CODE(DOMi)@en[[[Node]]]].
= Otherwise, the getter [['''MUST''']] return the 
concatenation of the [CODE(DOMa)@en[[[namespaceURI]]]]
and then [CODE(DOMa)@en[[[manakaiLocalName]]]].


** New tree accessor and mutator

[4] The 
[DFN@en[[CODE(DOMa)@en[[[manakaiParentElement]]]] attribute]]
contains the parent element of the [CODE(DOMi)@en[[[Node]]]],
if any.

The type of this attribute is [CODE(DOMi)@en[[[Element]]]].
This attribute is read-only.

= If the [CODE(DOMa)@en[[[parentNode]]]] of
the [CODE(DOMi)@en[[[Node]]]] is [CODE(IDL)@en[[[null]]]],
then the getter [['''MUST''']] return [CODE(IDL)@en[[[null]]]].
= Otherwise, if the [CODE(DOMa)@en[[[parentNode]]]]
of the [CODE(DOMi)@en[[[Node]]]] is an [CODE(DOMi)@en[[[Element]]]],
then the getter [['''MUST''']] return that 
[CODE(DOMi)@en[[[Element]]]].
= Otherwise, the getter [['''MUST''']] return
the [CODE(DOMa)@en[[[manakaiParentElement]]]]
of the [CODE(DOMa)@en[[[parentNode]]]] of the
[CODE(DOMi)@en[[[Node]]]].  It might be [CODE(IDL)@en[[[null]]]].

@@ ISSUE: Should the owner element be returned for
an [CODE(DOMi)@en[[[Attr]]]]?

[3] The [DFN@en[[CODE(DOMm)@en[[[manakaiAppendText]]]] method]]
appends a string at the end of the [CODE(DOMi)@en[[[Node]]]].

[FIG[
[PRE(IDL code)[
[[partial]] [[interface]] [[Node]] {
  [[Node]] [[manakaiAppendText]]([[DOMString]] [VAR[s]]);
  void [[manakaiAppendContent]](([[Node]] or [[DOMString]]) [VAR@en[node]]);
};
]PRE]
]FIG]

;; [81011] In [[DOM Perl Binding]], [VAR@en[s]] can be a reference to the string.

;; It was the original intention that for the DOM Perl binding
the [CODE(perl)[[[.=]]]] operator is to be overloaded
by this method.  However, since overloading that
operator by this method makes the [[Perl]]
implementation (at least Perl 5.8.1 and 5.8.7
on GNU/Linux system) unstable, that feature is
temporarily disabled.

[81012] When invoked, the method [['''MUST''']] run the following steps with the argument [VAR@en[s]]:
[FIG[
= If setting the [CODE(DOMa)@en[[[textContent]]]] attribute of the [[context object]] has no effect,
return the [[context object]] and abort these steps.
= If setting the [CODE(DOMa)@en[[[textContent]]]] attribute would append a [CODE(DOMi)@en[[[Text]]]] node
as the children of the [[context object]], 
== If the last child of the [[context object]], if any, is a [CODE(DOMi)@en[[[Text]]]] node,
[[replace data]] with [VAR[node]] the [CODE(DOMi)@en[[[Text]]]] node, [VAR[offset]] [CODE(DOMa)@en[[[length]]]] attribute value
of the [CODE(DOMi)@en[[[Text]]]] node, [VAR@en[count]] 0, and [VAR@en[data]] [VAR@en[s]].
== Otherwise, if the length of [VAR@en[s]] is greater than zero (0), create a [CODE(DOMi)@en[[[Text]]]] node whose [[data]]
is [VAR@en[s]] and [[insert]] the node into the [[context object]] before [[null]].
= Otherwise, if the [[context object]] is an instance of the [CODE(DOMi)@en[[[CharacterData]]]] interface,
[[replace data]] with [VAR[node]] the [[context object]], [VAR[offset]] [CODE(DOMa)@en[[[length]]]] attribute value
of the [[context object]], [VAR@en[count]] 0, and [VAR@en[data]] [VAR@en[s]].
= Otherwise, set the [CODE(DOMa)@en[[[textContent]]]] attribute value to the [CODE(DOMa)@en[[[textContent]]]]
attribute value immediately followed by [VAR@en[s]].
= Return the [[context object]].
]FIG]

[81013] The [DFN[[CODE(DOMm)@en[[[manakaiAppendContent]]]]]] method [['''MUST''']] run the following steps:
[FIG[
= Let [VAR@en[node]] be the argument.
= Let [VAR@en[context]] be the [[template content]] of the [[context object]] if the [[context object]] is an HTML [CODE(HTMLe)@en[[[template]]]] element, or the [[context object]] otherwise.
= If [VAR@en[node]] is a [CODE(DOMi)en[[[Node]]]], act as if the [CODE(DOMm)@en[[[appendChild]]]] method of the [CODE(DOMi)@en[[[Node]]]] interface is invoked with the [[context object]] [VAR@en[context]] and the argument [VAR@en[node]].
= Otherwise, act as if the [CODE(DOMm)@en[[[manakaiAppendText]]]] method of the [CODE(DOMi)@en[[[Node]]]] interface is invoked with the [[context object]] [VAR@en[context]] and the argument [VAR@en[node]].
]FIG]

;; [81014] The method returns nothing.

** Read-only flag accessors

[1] The [DFN@en[[CODE(DOMa)@en[[[manakaiReadOnly]]]] attribute]]
represents whether the [CODE(DOMi)@en[[[Node]]]]
is read-only or not.
This is a [CODE(IDL)@en[[[boolean]]]] attribute.
This attribute is [[read-only]].

The getter [['''MUST''']] return [CODE(IDL)@en[[[true]]]]
if the [CODE(DOMi)@en[[[Node]]]] is read-only.
Otherwise, it [['''MUST''']] return [CODE(IDL)@en[[[false]]]].

[2] The [DFN@en[[CODE(DOMm)@en[[[manakaiSetReadOnly]]]] method]]
is used to set the [CODE(DOMa)@en[[[manakaiReadOnly]]]]
attribute.
This method has two parameters: [CODE(DOMp)@en[[[newValue]]]]
and [CODE(DOMp)@en[[[deep]]]].
This method returns nothing.

[CODE(DOMp)@en[[[newValue]]]], type [CODE(IDL)@en[[[boolean]]]], 
represents the new value of the [CODE(DOMa)@en[[[manakaiReadOnly]]]]
attribute.

[CODE(DOMp)@en[[[deep]]]], type [CODE(IDL)@en[[[boolean]]]].
represents whether the descendants' 
[CODE(DOMa)@en[[[manakaiReadOnly]]]] attributes
should also be set or not.

When invoked, the method [['''MUST''']] set the
[CODE(DOMa)@en[[[manakaiReadOnly]]]] attribute,
i.e. the read-only flag, of the [CODE(DOMi)@en[[[Node]]]]
to [CODE(DOMp)@en[[[newValue]]]].

If the [CODE(DOMp)@en[[[deep]]]] parameter is set to
[CODE(IDL)@en[[[true]]]], then the method [['''MUST''']]
act as if the method is also invoked to
any of the following [CODE(DOMi)@en[[[Node]]]]s with same
[CODE(DOMp)@en[[[newValue]]]] and [CODE(DOMp)@en[[[deep]]]]
parameters:
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[childNodes]]]] of the [CODE(DOMi)@en[[[Node]]]]
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[attributes]]]] of the [CODE(DOMi)@en[[[Node]]]]
(if it is an [CODE(DOMi)@en[[[Element]]]])
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[elementTypes]]]] of the [CODE(DOMi)@en[[[Node]]]]
(if it is a [CODE(DOMi)@en[[[DocumentTypeDefinition]]]])
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[generalEntities]]]] of the 
[CODE(DOMi)@en[[[Node]]]]
(if it is a [CODE(DOMi)@en[[[DocumentTypeDefinition]]]])
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[notations]]]] of the [CODE(DOMi)@en[[[Node]]]]
(if it is a [CODE(DOMi)@en[[[DocumentTypeDefinition]]]])
- [CODE(DOMi)@en[[[Node]]]]s contained in
[CODE(DOMa)@en[[[attributeDefinitions]]]] of the 
[CODE(DOMi)@en[[[Node]]]]
(if it is a [CODE(DOMi)@en[[[ElementTypeDefinition]]]])


** Metadata accessor

[FIG[
[81008] 
[PRE(IDL code)[
[[partial]] [[interface]] [[Node]] {
  [[attribute]] [[DOMString]] [[manakaiLanguage]];
  [[attribute]] [[DOMString]] [[manakaiHTMLLanguage]];
};
]PRE]
]FIG]

[6]
The [DFN@en[[CODE(DOMa)@en[[[manakaiLanguage]]]] attribute]]
contans the language information of the [CODE(DOMi)@en[[[Node]]]],
if available.

The type of this attribute is [CODE(DOMi)@en[[[DOMString]]]].
This attribute is read-write.

This getter [['''MUST''']] act as if the following
algorithm is performed:
= If the [CODE(DOMi)@en[[[Node]]]] is an
[CODE(DOMi)@en[[[Element]]]]:
== If there is an [CODE(DOMi)@en[[[Attr]]]], in
the [CODE(DOMa)@en[[[attributes]]]] list of
the [CODE(DOMi)@en[[[Element]]]],
whose [CODE(DOMa)@en[[[namespaceURI]]]] is 
[CODE(URI)@en[[[http://www.w3.org/XML/1998/namespace]]]]
and [CODE(DOMa)@en[[[localName]]]] is 
[CODE(XMLa)@en[[[lang]]]], then the getter
returns the [CODE(DOMa)@en[[[value]]]]
of the [CODE(DOMi)@en[[[Attr]]]].
== Otherwise, if there is an [CODE(DOMi)@en[[[Attr]]]], in
the [CODE(DOMa)@en[[[attributes]]]] list of
the [CODE(DOMi)@en[[[Element]]]],
whose [CODE(DOMa)@en[[[namespaceURI]]]] is 
[CODE(IDL)@en[[[null]]]]
and [CODE(DOMa)@en[[[localName]]]] is 
[CODE(XMLa)@en[[[xml]]:[[lang]]]], then the getter
returns the [CODE(DOMa)@en[[[value]]]]
of the [CODE(DOMi)@en[[[Attr]]]].
= If the [CODE(DOMi)@en[[[Node]]]] has a 
non-[CODE(IDL)@en[[[null]]]] [CODE(DOMi)@en[[[parentNode]]]],
then the getter returns the 
[CODE(DOMa)@en[[[manakaiLanguage]]]] of that 
[CODE(DOMi)@en[[[Node]]]].
= Otherwise, if the [CODE(DOMi)@en[[[Node]]]] has a
non-[CODE(IDL)@en[[[null]]]] [CODE(DOMa)@en[[[ownerDocument]]]],
then the getter returns the 
[CODE(DOMa)@en[[[manakaiLanguage]]]] of that 
[CODE(DOMi)@en[[[Node]]]].
= Otherwise, if the [CODE(DOMi)@en[[[Node]]]] is a 
[CODE(DOMi)@en[[[Document]]]] and any natural
language information is attached to the 
[CODE(DOMi)@en[[[Document]]]],
for example by [CODE(HTTP)@en[[[Content-Language]]]]
[[HTTP]] header field, then the getter returns it.
-- If such information has different syntax and / or
semantics than one for the [CODE(XMLa)@en[[[xml]]:[[lang]]]]
attributes as defined in XML 1.0 and 1.1 specifications,
then the getter [['''MUST''']] return an XML-compatible
string that is considered as equivalent to that information.
-- If such convertion if not possible, then
the getter [['''MUST NOT''']] return any string in this step.
-- If more than one languages are specified, then
the string [CODE(lang)@en[[[mul]]]] [['''MAY''']] be used.
= Otherwise, return an empty string.

@@ TODO: Maybe we should clarify what convertion
must be done for [CODE(DOMi)@en[[[Document]]]]s.

The setter [['''MUST''']] act as if the following algorithm
is performed:
= Let [VAR@en[s]] as the new value given to the attribute.
= If the [CODE(DOMi)@en[[[Node]]]] is an
[CODE(DOMi)@en[[[Element]]]]:
== If the [CODE(DOMi)@en[[[Node]]]] has one or two
[CODE(DOMi)@en[[[Attr]]]]s whose [CODE(DOMa)@en[[[namespaceURI]]]]
is [CODE(URI)@en[[[http://www.w3.org/XML/1998/namespace]]]]
and [CODE(DOMa)@en[[[localName]]]] is [CODE(XMLa)@en[[[lang]]]]
or whose [CODE(DOMa)@en[[[namespaceURI]]]] is
[CODE@en[[[null]]]] and [CODE(DOMa)@en[[[localName]]]] is
[CODE(XMLa)@en[[[xml]]:[[lang]]]], then:
=== If the [CODE(DOMi)@en[[[Element]]]] is read-only,
then throw a [CODE(DOM)@en[[[NO_MODIFICATION_ALLOWED_ERR]]]]
exceoption and abort the algorithm.
=== Otherwise, any such [CODE(DOMi)@en[[[Attr]]]]
[['''MUST''']] be removed from the [CODE(DOMi)@en[[[Element]]]]
as if [CODE(DOMm)@en[[[removeAttributeNode]]]] is invoked
with appropriate parameter.
---- Note that a default attribute might appear after
the remove operation.
== Otherwise, if the element has an [CODE(DOMi)@en[[[Attr]]]]
whose [CODE(DOMa)@en[[[namespaceURI]]]]
is [CODE(URI)@en[[[http://www.w3.org/XML/1998/namespace]]]]
and [CODE(DOMa)@en[[[localName]]]] is [CODE(XMLa)@en[[[lang]]]]:
=== If the [CODE(DOMi)@en[[[Attr]]]] is read-only,
then throw a [CODE(DOM)@en[[[NO_MODIFICATION_ALLOWED_ERR]]]]
exceoption and abort the algorithm.
=== Otherwise, set its [CODE(DOMa)@en[[[value]]]] to 
[VAR@en[s]] and set its [CODE(DOMa)@en[[[specified]]]]
to [CODE(IDL)@en[[[true]]]].
== Otherwise, if the element has an [CODE(DOMi)@en[[[Attr]]]]
whose [CODE(DOMa)@en[[[namespaceURI]]]]
is [CODE(IDL)@en[[[null]]]] and [CODE(DOMa)@en[[[localName]]]] is 
[CODE(XMLa)@en[[[xml]]:[[lang]]]]:
=== If the [CODE(DOMi)@en[[[Attr]]]] is read-only,
then throw a [CODE(DOM)@en[[[NO_MODIFICATION_ALLOWED_ERR]]]]
exceoption and abort the algorithm.
=== Otherwise, set its [CODE(DOMa)@en[[[value]]]] to 
[VAR@en[s]] and set its [CODE(DOMa)@en[[[specified]]]]
to [CODE(IDL)@en[[[true]]]].
== Otherwise, invoke the [CODE(DOMm)@en[[[setAttributeNS]]]]
method on the [CODE(DOMi)@en[[[Element]]]] with
parameters [CODE(URI)@en[[[http://www.w3.org/XML/1998/namespace]]]],
[CODE(XMLa)@en[[[xml]]:[[lang]]]], and [VAR@en[s]].
--- Note that this might cause an exception is thrown.
= Otherwise, setter do nothing.

@@ TODO: Setter for [CODE(DOMi)@en[[[Document]]]].

@@ TODO: mutation event consideration

[81009] On getting, the [DFN[[CODE(DOMa)@en[[[manakaiHTMLLanguage]]]]]] attribute of the
[CODE(DOMi)@en[[[Node]]]] object [['''MUST''']] return the [[language]] of the node [SRC[HTML]].

[81010] On setting, the attribute [['''MUST''']] run the following steps:
[FIG[
= If the [[context object]] is not an element, abort these steps.
= If the [[element]] has the [CODE(XMLa)@en[[[lang]]]] attribute in the [[XML namespace]],
set its value to the new value and abort these steps.
= If the [[element]] is in the [[HTML namespace]], set the [CODE(XMLa)@en[[[lang]]]] attribute in no namespace
to the new value and abort these steps.
= Set the [CODE(XMLa)@en[[[lang]]]] attribute in the [[XML namespace]],
set its value to the new value and abort these steps.
]FIG]

* Interfaces

[32] [CODE(DOMi)@en[[[Node]]]] objects [['''MAY''']]
implement the [CODE(DOMi)@en[[[NSResolver]]]] interface
[SelectorsAPI].

* Parsing

[81004] 
[PRE(code IDL)[
partial interface Node {
  DOMString? manakaiGetChildNamespaceURI(DOMString? tagName);
};
]PRE]

[81003] The [DFN[[CODE(DOMm)@en[[[manakaiGetChildNamespaceURI]]]]]] method [['''MUST''']]
run the following steps:
= If the [[node document]] of the [CODE(DOMi)@en[[[Node]]]] is an [[HTML document]]:
== Let [VAR@en[tagName]] be [VAR@en[tagName]] [[converted to ASCII lowercase]].
== If the [CODE(DOMi)@en[[[Node]]]] is a [[MathML text integration point]]:
=== If [VAR@en[tagName]] is [CODE(XMLe)@en[[[mglyph]]]] or [CODE(XMLe)@en[[[malignmark]]]],
return the [[MathML namespace]] and abort these steps.
=== Otherwise, jump to the step named '''HTML'''.
== Otherwise, if the [CODE(DOMi)@en[[[Node]]]] is an [CODE(XMLe)@en[[[annotation-xml]]]] element in the 
[[MathML namespace]] and [VAR@en[tagName]] is [CODE(XMLe)@en[[[svg]]]], return the
[[SVG namespace]] and abort these steps.
== Otherwise, if the [CODE(DOMi)@en[[[Node]]]] is an [[HTML integration point]], jump to the step named '''HTML'''.
== Otherwise, if the [CODE(DOMa)@en[[[namespaceURI]]]] of the [CODE(DOMi)@en[[[Node]]]] is 
the [[SVG namespace]] or the [[MathML namespace]], return the [CODE(DOMa)@en[[[namespaceURI]]]] and
abort these steps.
== '''HTML''': If [VAR@en[tagName]] is [CODE(XMLe)@en[[[svg]]]], return the [[SVG namespace]] and
abort these steps.
== Otherwise, if [VAR@en[tagName]] is [CODE(XMLe)@en[[[math]]]], return the [[MathML namespace]] and
abort these steps.
== Otherwise, return the [[HTML namespace]] and abort these steps.
= Otherwise:
== If [VAR@en[tagName]] contains a [CODE(char)[[[U+003A]]]] [CODE(charname)@en[[[COLON]]]]
character ([CODE(char)[[[:]]]]):
=== Let [VAR@en[prefix]] be [VAR@en[tagName]].
=== Delete the [CODE(char)[[[U+003A]]]] [CODE(charname)@en[[[COLON]]]]
character ([CODE(char)[[[:]]]]) character and any folloing characters from [VAR@en[prefix]].
=== Return the result of running [[locate a namespace]]
<http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#locate-a-namespace>
for the [CODE(DOMi)@en[[[Node]]]] using [VAR[prefix]] and abort these steps.
[SPAN(comment)[Please note that [VAR@en[prefix]] could be the empty string, which is different from [[null]].]]
== Otherise, return the result of running [[locate a namespace]]
<http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#locate-a-namespace>
for the [CODE(DOMi)@en[[[Node]]]] using [[null]] as [VAR[prefix]] and abort these steps.

* [CODE(DOMi)@en[RootNode]]

[FIG[
[81006] 
[PRE(IDL code)[
partial interface DocumentFragment {
  HTMLCollection getElementsByTagName(DOMString localName);
  HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
  HTMLCollection getElementsByClassName(DOMString classNames);
};
]PRE]
]FIG]

[81007] Methods [CODE(DOMm)@en[[[getElementsByTagName]]]],
[CODE(DOMm)@en[[[getElementsByTagNameNS]]]], and
[CODE(DOMm)@en[[[getElementsByClassName]]]]
of the [CODE(DOMi)@en[[[DocumentFragment]]]] interface
[['''MUST'''']] behave in the same way as the methods with same names
on the [CODE(DOMi)@en[[[Document]]]] interface, respectively.