Duplicate xforms events

I have noticed that the xforms server fires two duplicate events if you reference a specific instance element from a xforms:group ref="" statement (and use ref="." on the input control).

If you instead place the reference on the input control, then only a single event fires.
I have noticed this in both 'xforms-value-changed' and 'xforms-valid'.

The following code demonstrates this (where the third event is raised twice).

<xhtml:html xmlns:xforms="http://www.w3.org/2002/xforms"
    xmlns:f="http://orbeon.org/oxf/xml/formatting"
    xmlns:xhtml="http://www.w3.org/1999/xhtml"
    xmlns:xxforms="http://orbeon.org/oxf/xml/xforms"
    xmlns:xi="http://www.w3.org/2001/XInclude"
    xmlns:xxi="http://orbeon.org/oxf/xml/xinclude"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:widget="http://orbeon.org/oxf/xml/widget"
    xmlns:ev="http://www.w3.org/2001/xml-events"
    xmlns:xdt="http://www.w3.org/2005/xpath-datatypes">

        <xhtml:head>
       
                <xforms:model>
                        <xforms:instance id="controls">
                          <testcontrols>
                            <testcontrol/>
                          </testcontrols>
                        </xforms:instance>
                </xforms:model>
               
        </xhtml:head>

        <xhtml:body>
                Test 1
                <xforms:group>
                        <xforms:action ev:event="xforms-value-changed">
                                <xforms:message level="modal">xforms-value-changed (1)</xforms:message>
                        </xforms:action>
                       
                        <xforms:input ref="instance('controls')/testcontrol"/>
                </xforms:group>
               
                <xhtml:br/>
                Test 2
                <xforms:group ref="instance('controls')/testcontrol">
                        <xforms:action ev:event="xforms-value-changed">
                                <xforms:message level="modal">xforms-value-changed (2)</xforms:message>
                        </xforms:action>

                        <xforms:input ref="."/>
                </xforms:group>
        </xhtml:body>

</xhtml:html>

Chris.



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Chris,

Good catch. This happens because we dispatch an xforms-value-changed for
the group. I don't think we should since a group doesn't have a value,
so I committed a fix which prevents sending such events to any control
that doesn't have a value.

Now one question is whether an xforms:group should receive relevance and
read-only events.

-Erik

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