Re: [Xsltforms-support] Experimental Component control (Was: A couple of questions about subforms)

[Eric v. d. V. <vd...@dy...>]

Alain,

That's clearer, thanks for these explanations!

I have a first bug report for these new features ;) ...

If you replace the repeats by groups that's no longer working:

<?xml-stylesheet href="xsltforms/xsltforms.xsl" type="text/xsl"?>
<xh:html xmlns:xh="http://www.w3.org/1999/xhtml" 
    xmlns:xf="http://www.w3.org/2002/xforms" 
    xmlns:ev="http://www.w3.org/2001/xml-events">
    <xh:head>
        <xh:title>Figures</xh:title>
        <xf:model>
            <xf:instance id="main">
                <figures>
                    <rectangle height="10in" width="4em"/>
                    <circle radius="8%"/>
                </figures>
            </xf:instance>
        </xf:model>
    </xh:head>
    <xh:body>
        <xf:group ref="rectangle">
            <xf:output value="name()"/>
            <ul>
                <xf:group ref="@height">
                    <li>
                        <xf:component ref="." resource="size.xml"/>
                        <xf:output value="concat(' = ',.)"/>
                    </li>
                </xf:group>
                <xf:group ref="@width">
                    <li>
                        <xf:component ref="." resource="size.xml"/>
                        <xf:output value="concat(' = ',.)"/>
                    </li>
                </xf:group>
            </ul>
        </xf:group>
    </xh:body>
</xh:html>

The values which are displayed by the component in its input fields are
now the initial values that are in the subform!

Thanks,

Eric

Le mercredi 05 juin 2013 à 22:46 +0200, Alain Couthures a écrit :
> Eric,
> >> Currently, the default instance of a subform is merged with the one 
> >> in the main form while, from a component, it has its own id. That's 
> >> why those functions don't work with subforms even if their name would 
> >> say so ... ;-) 
> > That's what I had guessed but can you elaborate on this instance merge?
> For subforms, models already with the same ids in the main form are 
> merged: instances are merged and bindings are added in the main form. 
> Merging instances is similar: if the corresponding id already exists in 
> the main form, it is ignored; if not, it is added.
> 
> The default model without an id and the default instance without an id 
> are merged as if they had the same id.
> >
> > I had the feeling that the context node in the master form was becoming
> > the instance of the subform, is that what you mean?
> No, in a subform, instances are identical but scoping is effective and 
> "." references the context node.
> >   
> > Couldn't subform-instance() and subform-context() be pointers to the
> > subform default instance and context node without changing the behaviour
> > of this "merge"?
> Yes, that's possible but I would say that subform-instance() should be 
> useless unless, depending on the different situations, a component would 
> also be used as a subform.
> >> XSLTForms is a versatile product which can very easily be extended at
> >> any level (I know I'm not the only one doing this...)!
> > Sounds impressive...
> >
> >
> Well, XSLT is powerful and Javascript can now do a lot of things!
> 
> -Alain
>