Hi Tim,
*declaring* a viewer (or editor) so that it shows up in the dash:viewer
selection is, of course, easy and done through RDF triples. However, the
implementations of almost all viewers is in JavaScript/React. The
process for those is described in the PDF linked from
https://www.topquadrant.com/doc/7.2/ext/points.html#adding-a-new-panel-to-the-editor-applications
One way of declaring simple viewer widgets without any programming is to
infer rdf:HTML literals using a sh:values rule. So in theory, depending
on your requirements, you could declare a new property with a sh:values
rule that uses ADS, e.g.
graph.html(`
<table>
<tr>
<td>${focusNode.value(rdfs.label)}</td>
</tr>
</table>
`)
This mechanism would however require a new property with a different
sh:path, and also it can only produce normal HTML, and not the more
powerful React-based tables that we use as foundation of our own viewers.
But maybe there is a middle ground here: using the built-in
dash:ValueTableViewer as in
https://datashapes.org/forms.html#ValueTableViewer
and then use sh:values inferences to produce rdf:HTML? This could
control colors and fonts, but supporting editing is a completely
different beast altogether, because it would blur the lines of view and
edit modes (and the complexity of permissions).
Using TQ Professional Services or Premium Support is another option. We
could look at your requirements together and come up with a plan to
either do custom development or generalize what we have to also support
your use cases.
Holger
On 2022-06-18 3:22 am, Tim Smith wrote:
Hi,
I would like to add additional viewers and editors like those found in
the dash namespace <https://www.datashapes.org/forms.html#overview>.
Is it possible to add to EDG in this way? Can I add capability to an
existing viewer? In particular, I would like a more robust Value
Table Viewer that supports colors, fonts, and editing for certain use
cases. If so, is there a guide available?
Thanks,
Tim
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