3275 - [RDF/DOM] RDFElementImpl::ParseAttributeString always returns kNameSpaceID_Unknown

Status: RESOLVED FIXED

(Core Graveyard :: RDF, defect, P2)

Description

[Chris Waterson]

RDFElementImpl::ParseAttributeString() cannot return anything but
kNameSpaceID_Unkown because the XML namespace scoping information is not
properly set up in the element via the nsIXMLContent::SetContainingNameSpace()
method.

The net effect is that we can't properly match on both namespace and tag name;
we only match tag name. This'll start to cause problems if people use the same
tag name in different namespaces.

Fixing this is not easy: currently, the XML namespace scoping information is
lost during the translation from serialized XML into an RDF graph. We'll need
to add some kind of table that stores this information. This gets even nastier
in the face of duplicate resources in the same document, and aggregation.
Anyway, it'll be a problem sometime...

Comment 1

[Chris Waterson]

Set target milestone to M5.

Comment 2

[Chris Waterson]

Set target milestone to M4 because of dependency from bug 4614.

Comment 3

[Chris Waterson]

So I talked with gramps and chofmann about this one. The additions to
support this are starting to get pretty extensive, including whacking the XUL
content sink, the XUL content model builder, and the tree builder.

Per my discussion with gramps and chofmann, I am slipping these to M5, as well.

Comment 4

[Chris Waterson]

Fixed. Added code to the XUL content sink and the XUL content model builder to
properly "pull" namespace decls through the graph. See dom-test-2.xul for
verification.