Hi Grant,
thank you for your elaborate answer! jyve looks exactly like what I was
thinking about.
Best regards,
Florian
Am Freitag, 30. November 2018 18:17:50 UTC+1 schrieb Grant Nestor:
>
> Hi Florian,
>
> This certainly was one nice thing about classic notebook: the global
> `jupyter` variable.
>
> If you run JupyterLab in dev-mode, you get a global `window.lab` variable
> that gives you a handle on the application. This is a good starting point.
> To add a new cell, you can call
> `window.lab.commands.execute('notebook:insert-cell-below')`. You can call
> that in the browser console or in a cell:
>
> ```py
> %%js
> window.lab.commands.execute('notebook:insert-cell-below')
> ```
>
> If you want to run a cell:
> `window.lab.commands.execute('notebook:run-cell-and-select-next')`
>
> You can find these commands by searching the command palette and then
> searching the jupyterlab source code for the command title.
>
> Another relevant project is jyve which gives you several custom Jupyter
> JS-based kernels that expose JupyterLab internals outside of dev-mode:
> https://github.com/deathbeds/jyve
>
> We are weary to expose this outside of dev-mode by default because of the
> consequences that running arbitrary code could have on the user's lab
> environment and system. We could consider adding a setting to the
> javascript-extension allowing users to override this behavior so that it's
> not default but possible.
>
> Feel free to open an issue on the jupyterlab repo.
>
> Grant
>
> On Friday, November 30, 2018 at 3:16:09 AM UTC-6, Florian Wetschoreck
> wrote:
>>
>> Hi,
>>
>> there are good reasons why currently it is not allowed to execute
>> arbitrary Javascript in JupyterLab.
>> Also, there is a fix with the javascript extension package which exposes
>> the window, document and element objects.
>> https://github.com/jupyterlab/jupyterlab/pull/4515
>>
>> However, we need access to more (internal) objects if we want to add
>> cells or execute cells etc
>>
>> Therefore, I want to extend the current Javascript extension package to
>> expose even more context for users who know what they are doing.
>> The goal is to have another more powerful javascript extension which
>> exposes all relevant objects to fully manipulate JupyterLab without having
>> to go through the process of writing a custom extension.
>>
>> Do you have any advice on this endeavor? For example: *which objects to
>> expose?*
>> How to install the extension without interfering with the existing
>> javascript MimeRenderer. Or maybe: how to overwrite the existing Javascript
>> MimeRenderer. Is it possible to have both side by side? eg to import
>> Javascript and/or JavascriptFullAccess from IPython.display
>>
>> Any help is highly appreciated.
>>
>> Florian
>>
>>
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