[IPython-dev] More widget feasibility ideas

Adam Hughes hughesadam87 at gmail.com
Wed Oct 29 19:40:08 EDT 2014


Ah ok.  Thanks will try to get up to speed so not always asking such simple
questions
On Oct 29, 2014 7:06 PM, "Nicholas Bollweg" <nick.bollweg at gmail.com> wrote:

> Yes, add_class was replaced with _dom_classes. It should actually simplify
> a lot of your code!
>
> On Wed, Oct 29, 2014 at 6:53 PM, Adam Hughes <hughesadam87 at gmail.com>
> wrote:
>
>> Hi Nicholas,
>>
>> After I updated to the recent dev, part of our code broke.  It's from the
>> part that you showed to us, so I figured you might be aware of what has
>> been changed:
>>
>> AttributeError                            Traceback (most recent call last)<ipython-input-8-70485b3b7990> in displayed(self, _)    113     # -----    114     def displayed(self, _):--> 115         self.add_class("col-xs-9")    116         # THIS IS WHERE DRAW IS CALLED AFTER DISPLAYS CHANGE    117         self.draw()
>> AttributeError: 'Spectrogram' object has no attribute 'add_class'
>>
>>
>>
>> On Tue, Oct 28, 2014 at 12:07 AM, Adam Hughes <hughesadam87 at gmail.com>
>> wrote:
>>
>>> Ah gotcha!  Thanks for clearing that up, much appreciated!  I guess my
>>> dev is way older than I recall.
>>>
>>> On Mon, Oct 27, 2014 at 10:45 PM, Nicholas Bollweg <
>>> nick.bollweg at gmail.com> wrote:
>>>
>>>> For reference, I see this:
>>>>
>>>> [image: Inline image 3]
>>>>
>>>> ah, the _dom_classes may have been more recent than that. Here's the
>>>> change, landed sept 23: https://github.com/ipython/ipython/pull/6235
>>>>
>>>> you may have to go back to something like:
>>>>
>>>> w = HTML("text")
>>>>> w.on_displayed(lambda x: w.add_class("alert-warning")
>>>>>
>>>>
>>>> When you want to change it, you'd then have to:
>>>>
>>>> w.remove_class("alert-warning")
>>>>> w.add_class("alert-success")
>>>>>
>>>>
>>>> In the new core widgets, a traitlet manages these directly:
>>>>
>>>> https://github.com/ipython/ipython/blob/master/IPython/html/widgets/widget_button.py#L36
>>>> And all the class adding/removing is done on the client side.
>>>>
>>>> In my bootstrap librar <https://github.com/bollwyvl/ip-bootstrap>y i
>>>> have been tinkering with, I did the same, though a little differently.
>>>>
>>>> On Mon, Oct 27, 2014 at 8:55 PM, Adam Hughes <hughesadam87 at gmail.com>
>>>> wrote:
>>>>
>>>>> Yes, but when you do this in your notebook, does it appear in a
>>>>> different colors?  Mine looks like plain text.  IE I literally see:
>>>>>
>>>>> info
>>>>> danger
>>>>> warning
>>>>> success
>>>>>
>>>>> In my output cell, instead of pretty colors like the example on the
>>>>> bootstrap link.  Using about a 2week-old version of 3.0 dev, if that
>>>>> matters.
>>>>>
>>>>> On Mon, Oct 27, 2014 at 8:50 PM, Nicholas Bollweg <
>>>>> nick.bollweg at gmail.com> wrote:
>>>>>
>>>>>> right, you'd switch it out to another context:
>>>>>>
>>>>>> from IPython.html import widgets
>>>>>>> from IPython.display import display
>>>>>>> for context in ["info", "danger", "warning", "success"]:
>>>>>>>     display(widgets.HTML(value=context, _dom_classes=["alert",
>>>>>>> "alert-" + context]))
>>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>
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>>>>>
>>>>
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