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insert action suggestion

From: T. V. Raman <tvraman@almaden.ibm.com>
Date: Mon, 14 Jan 2002 14:36:44 -0800
Message-ID: <15427.23932.688503.25639@bubbles.almaden.ibm.com>
To: werner.donne@re.be
Cc: www-forms@w3.org
The prototypical instance comes from element
<instance>...</instance> in the authored (static) version of
the document.

Inserts and deletes happen against the run-time instance
data 

>>>>> "Werner" == Werner Donné <werner.donne@re.be> writes:

    Werner> Hi, An insert action may occur on a node-set
    Werner> which is allowed to be empty. In order to have
    Werner> something to copy to the instance in that case,
    Werner> the instance element should contain some element
    Werner> in which the source for the copy can be
    Werner> found. This can't be the last element of the
    Werner> node-set we are going to insert in, because then
    Werner> the node-set would have to contain at least one
    Werner> element, which is not good because it is allowed
    Werner> to be empty.

    Werner> As a consequence the xforms:instance element
    Werner> must contain two elements: one that will be
    Werner> submitted and another in which initialisation
    Werner> elements reside. As an example:

    Werner> <model> <instance> <my:doc> <my:things>
    Werner> </my:things> </my:doc> <my:doc-init> <my:things>
    Werner> <my:thing>...</my:thing> </my:things>
    Werner> </my:doc-init> </instance>

    Werner>    <submitinfo ref="my:doc" ...  /> </model>

    Werner> <repeat id="things"
    Werner> nodeset="my:doc/my:things/my:thing"> ...
    Werner> </repeat>

    Werner> <button> <action ev:event="ev:activate"> <insert
    Werner> nodeset="my:doc-init/my:things/my:thing"
    Werner> at="cursor('things')" position="after"/>
    Werner> </action> </button>

    Werner> I suggest an alternative which consists of
    Werner> allowing to specify the element to be copied to
    Werner> the instance in the insert element itself. The
    Werner> content of the insert element would be an
    Werner> alternative to the nodeset attribute.

    Werner> Regards,

    Werner> Werner.  -- Werner Donné -- Re BVBA
    Werner> Engelbeekstraat 8 Papenhof 15 B-3300 Tienen
    Werner> B-3583 Beringen tel: (+32) 486 425803 e-mail:
    Werner> werner.donne@re.be

-- 
Best Regards,
--raman
------------------------------------------------------------
T. V. Raman:  PhD (Cornell University)
IBM Research: Human Language Technologies
              Conversational And Multimodal WWW Standards
Phone:        1 (408) 927 2608
Fax:        1 (408) 927 3012
Email:        tvraman@us.ibm.com
WWW:      http://www.cs.cornell.edu/home/raman
PGP:          http://emacspeak.sf.net/raman.asc
Snail:        IBM Almaden Research Center,
              650 Harry Road
              San Jose 95120
Received on Monday, 14 January 2002 17:37:28 GMT

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