[IPython-dev] More widget feasibility ideas

[Nicholas Bollweg]

if there's nothing else going on there, that is correct!

On Thu, Oct 30, 2014 at 1:38 PM, Adam Hughes <hughesadam87 at gmail.com> wrote:

> So we can also drop the def displayed() / on_displayed portions of the
> GUI, right?
>
> On Thu, Oct 30, 2014 at 1:05 PM, Nicholas Bollweg <nick.bollweg at gmail.com>
> wrote:
>
>> You specify it when you create the instance:
>>
>> w = SomeWidget(_dom_classes=["panel-body"])
>>
>> or, in the case of class that should always get a _dom_class:
>>
>> class PanelBody(widgets.Box):
>>     def __init__(self, *args, **kwargs):
>>         super(PanelBody, self).__init__(*args, **kwargs)
>>         self._dom_classes += ("panel-body",)
>>
>> You could also monkey with the kwargs beforehand, avoiding, under the
>> covers, two calls to update_classes, but this approach is easy to read,
>> which i think wins out.
>>
>> When I asked about this on gitter, the reasoning for this change was that
>> the add/remove class couldn't be made stateful, and that it was using
>> extra, custom comms stuff to do something that traitlets were perfectly
>> capable of. Thus, this traitlet. Howevever, as you can see from it having
>> the _ prefix, this is really much more of a widget-developer functionality:
>> it is suggested that no-fooling custom javascript be done... which is still
>> not exactly simple.
>>
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>>
>>
>
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