W3C home > Mailing lists > Public > www-forms@w3.org > April 2007

Re: context node for output's contents

From: Mark Birbeck <mark.birbeck@x-port.net>
Date: Mon, 2 Apr 2007 11:40:12 +0100
Message-ID: <640dd5060704020340sda31ce6t1e4e87bc469a2508@mail.gmail.com>
To: "Aaron Reed" <aaronr@us.ibm.com>
Cc: www-forms@w3.org

Hi Aaron,

I would suggest that it is worth fixing, since there should always be
an evaluation context, and so the context for the label should
definitely should be that of the 'most recent' evaluation context.

formsPlayer does implement it that way, but I do recall that we had a
bug in this area at one time, so you may be using an out of date
version of formsPlayer for your comparisons. But I've just checked
with the latest preview release of 1.5 and it works the way we would
expect it to. I used your test first, and then modified it slightly as


The changes are minor and are only needed because we're trying to
achieve a standard 'format' for our tests, to make it easier to run
them with Selenium. In this case the display will be 'Test 1:ok'.

The test can be run in Selenium by loading the formsPlayer test suite:


and then choosing the test 'TestXForms10FcOutputEvaluationContext' in
the left pane. Click on 'Selected' in the right pane to run only this



On 02/04/07, Aaron Reed <aaronr@us.ibm.com> wrote:
> Hi,
> formsPlayer and XSmiles don't handle this testcase, but I think that it
> is a valid one.  The general question is, "should the xforms contents of
> an output with @value have no context node with which to evalutate their
> xpath expressions (since the output has no binding attributes) or should
> they inherit the context node that the output used to evaluate its
> @value expression?  Mozilla supported this at one time but regressed it
> so now I'm wondering if it is worth fixing if no one else handles this
> like Mozilla.
> Here is an example form:
> <?xml version="1.0"?>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
> "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml"
> xmlns:html="http://www.w3.org/1999/xhtml"
> xmlns:ev="http://www.w3.org/2001/xml-events"
> xmlns:xforms="http://www.w3.org/2002/xforms" xml:lang="en">
>    <head>
>      <title>Output Value Context</title>
>      <xforms:model>
>        <xforms:instance xmlns="">
>          <data xmlns="">
>            <value>X</value>
>          </data>
>        </xforms:instance>
>      </xforms:model>
>    </head>
>    <body>
>      <div>
>        <p>
>        This testcase test whether an output with a value attribute sets the
>        correct context for its children (the label). The context should
> be its
>        parent's context.
>      </p>
>        <p>
>        I believe the following should display "X X Y":
>      </p>
>        <xforms:group ref="value">
>          <xforms:output ref="."/>
>          <xforms:output value="'Y'">
>            <xforms:label ref="."/>
>          </xforms:output>
>        </xforms:group>
>      </div>
>    </body>
> </html>
> Thanks for any guidance,
> --Aaron

  Mark Birbeck, formsPlayer

  mark.birbeck@x-port.net | +44 (0) 20 7689 9232
  http://www.formsPlayer.com | http://internet-apps.blogspot.com

  standards. innovation.
Received on Monday, 2 April 2007 10:40:16 UTC

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