Re: [Chiba-users] group readonly property not applied to child controls

[Adrian B. <adr...@or...>]

Ulrich Nicolas Lissé wrote:

> hi adrian,
>
> i think this has been clarified in 
> http://www.w3.org/2003/10/REC-xforms-10-20031014-errata.html#N107D3
>
> so, the readonly property is only 'inherited' in the model, not in the 
> ui structure. the only model item property being 'inherited' in the ui 
> is the relevant property.

Ah, you are quite correct. I wish there was a version of the spec with 
the errata incorporated that I could work off.

>
> regards,
> uli.
>
> ps: about the html 'disabled' attribute: i think it is only defined 
> for html form controls, not for tables. no inheritance of 'disabled' 
> at all. css styles like 'display:none;' work that way because of 
> implicit inheritance in the box model.

Yes you're right. But IE at least seems to inheirit disabled on a table 
down to the input controls. I guess it's non-standard behaviour though.

>
> Adrian Baker wrote:
>
>> *ping*
>>
>> Adrian Baker wrote:
>>
>>> I've run into a problem where the readonly property of my group is 
>>> not extending to the child controls they way it should.
>>>
>>> Say I have the following form:
>>>
>>> <xforms:instance id="main">
>>>    <data>
>>>        <red>
>>>        <green>
>>>        <blue>
>>>    </data>
>>> </xforms:instance>
>>>
>>> <xforms:instance id="supplementary">
>>>    <data>
>>>        <apple>
>>>    </data>
>>> </xforms:instance>
>>>
>>> <xforms:bind id="bind-apple" 
>>> nodeset="instance('supplementary')/apple" readonly="true()"/>
>>> <xforms:bind id="bind-red" nodeset="/data/red"/>
>>> <xforms:bind id="bind-green" nodeset="/data/green"/>
>>> <xforms:bind id="bind-blue" nodeset="/data/blue"/>
>>>
>>> <xforms:group bind="bind-apple">
>>>    <xforms:input bind="bind-red>...</xforms:input>
>>>    <xforms:input bind="bind-green>...</xforms:input>
>>>    <xforms:input bind="bind-blue>...</xforms:input>
>>> </xforms:group>
>>>
>>> Note that bind-apple is specified as readonly, therefore the 
>>> bind-apple group *and all it's child controls* should be readonly. 
>>> From 9.1.1 (http://www.w3.org/TR/xforms/index-all.html#ui-group) of 
>>> the spec:
>>>
>>> "...When model item properties do apply, they apply to all form 
>>> controls within the |group|. This means, for instance, that if a 
>>> group is bound to an instance data node that is non-relevant, all 
>>> child form controls will also be treated as non-relevant."
>>>
>>> Chiba doesn't actually do this however. It *does* correctly 
>>> propogate model properties in the model - ie if my parent node is 
>>> readonly, the resulting DataElement is readonly, and things work 
>>> well. So if I placed red green & blue inside the apple node, it 
>>> would work correctly. But as soon as the nodes don't inherit, it 
>>> doesn't work, regardless of the UI hierarchy.
>>>
>>> The simple fix is to modify all the checks for model properties like 
>>> chiba:data/@chiba:readonly in the xslt's so that they check ancestor 
>>> nodes as well.
>>>
>>> eg replace
>>>
>>>    <xsl:if test="chiba:data/@chiba:readonly='true'">
>>>        <xsl:attribute name="disabled">disabled</xsl:attribute>
>>>    </xsl:if>
>>>
>>> with
>>>
>>>    <xsl:if 
>>> test="ancestor-or-self::node()/chiba:data/@chiba:readonly='true'">
>>>        <xsl:attribute name="disabled">disabled</xsl:attribute>
>>>    </xsl:if>
>>>
>>> Actually, readonly may be the only one that needs changing due to 
>>> the fact that the browser (IE at least) doesn't propogate the 
>>> disabled property, whereas hidden-ness is propogated. (So even if I 
>>> set my html TABLE element to disabled, child controls are not 
>>> disabled, whereas if my html TABLE is set to display:none, then all 
>>> child elements get hidden too).
>>>
>>> Adrian
>>>
>>>
>>>
>>>
>>> -------------------------------------------------------
>>> SF.Net email is sponsored by:
>>> Tame your development challenges with Apache's Geronimo App Server. 
>>> Download
>>> it for free - -and be entered to win a 42" plasma tv or your very own
>>> Sony(tm)PSP.  Click here to play: http://sourceforge.net/geronimo.php
>>> _______________________________________________
>>> Chiba-users mailing list
>>> Chi...@li...
>>> https://lists.sourceforge.net/lists/listinfo/chiba-users
>>>
>>> ______________________________________________________________________
>>> This email has been scanned by the MessageLabs Email Security System.
>>> For more information please visit http://www.messagelabs.com/email 
>>> ______________________________________________________________________
>>
>>
>>
>>
>>
>>
>>
>> -------------------------------------------------------
>> SF.Net email is sponsored by:
>> Tame your development challenges with Apache's Geronimo App Server. 
>> Download
>> it for free - -and be entered to win a 42" plasma tv or your very own
>> Sony(tm)PSP.  Click here to play: http://sourceforge.net/geronimo.php
>> _______________________________________________
>> Chiba-users mailing list
>> Chi...@li...
>> https://lists.sourceforge.net/lists/listinfo/chiba-users
>>
>>
>
>