110817 - Nested XLinks don't work consistently

Status: NEW

(Core :: XML, defect)

Description

[rubydoo123]

The above mentioned nested xlink test displays an error in mozilla processing. 
If you hover over the links, the displayed target in the status bar all point to 
the a.xml document. If you left-click on each link, the resulting target for all 
links is a.xml. If you context menu select each target, they all go to the 
correct locations : a=a.xml, b=b.xml, c=c.xml

I will attach all of the related files with this test case, just in case it gets 
removed from the site.

Comment 1

[rubydoo123]

Attachment: the xml test file : nested_xlink.xml

This is the xml test case, the three css files that I am attaching are
associated with this file. If you copy everything to your system, you will need
to adjust the paths for the css files.

Comment 2

[rubydoo123]

Attachment: one of three css files : abc.css

This is one of three css files mentioned in the test file : abc.css

Comment 3

[rubydoo123]

Attachment: two of three css files : xhtml2.css

This is the second fo three css files mentioned in the test file

Comment 4

[rubydoo123]

Attachment: three of three css files : xhtml-default.css

This is the third and final css file mentioned in the test file

Comment 5

[Heikki Toivonen (remove -bugzilla when emailing directly)]

The left-click (and hover but that is only because XML Base has not been used)
behaviour is the correct one. XLinks don't nest; the outermost link is the only
link there is.

Comment 6

[rubydoo123]

I contacted the HTML WG W3C rep, and this was his response to the not able to 
nest xlinks comment:

That is NOT true.  Unfortunately this is not obvious from the XLink REC,
but resolution of XLink issue #25 [1] says:

    Resolution:

    Allow nested links, add non-normative examples to make sure
    implementors don't miss the point.

though, it seems editors forgot to add appropriate examples :-(

A good example is SVG, SVG's `a' element uses simple XLink [2] and
it can be nested.  Existing SVG implementations, such as Adobe's
SVG Viewer, do behave correctly with those nested links.

[1] http://www.w3.org/XML/2000/12/LinkingIssueList.html#XL25
[2] http://www.w3.org/TR/SVG/linking.html#Links

Regards,
-- 
Masayasu
W3C - World Wide Web Consortium

Comment 7

[Heikki Toivonen (remove -bugzilla when emailing directly)]

*goes back to check the REC* You are right, I misread the REC. The REC states:
"If a simple-type element contains nested XLink elements, such contained
elements have no XLink-specified relationship to the parent link." I read that
carelessly to read no nested links. Sorry about the confusion.

Changing summary to "Nested XLinks don't work consistently".

Comment 8

[Greg K.]

Attachment: Attachment 58417 updated to use CSS files also hosted as attachments to this bug

Comment 9

[Greg K.]

Also reproduced using FF 0.9.1 on Win XP; setting OS=All.

Comment 10

[Anne (:annevk)]

Attachment: testcase (nested xhtml:a links)

The behavior of nexted XLinks should eventually be similar to nested xhtml:a
links. I do not think we want to special-case either.

Comment 11

[Jonathan Watt [:jwatt]]

Should eventually be fixed by bug 211916.

Comment 12

[Jonathan Watt [:jwatt]]

Actually this seems to have been fixed on trunk by something else. I don't know by what, or when it happened. It's completely fixed in SeaMonkey trunk, and the only reason it's not fixed in Firefox trunk is because of a hack that bug 325652 exists to back out. The backout may actually take place in bug 331959.

I don't have time to investigate myself, but if someone else does, I'd be very interested to know what fixed this.

Comment 13

[Jonathan Watt [:jwatt]]

*** Bug 297558 has been marked as a duplicate of this bug. ***