[IPython-dev] Notebook: Retaining mouse events when destroying elements with JS

[Thomas Kluyver]

When you display output, clicking in there disables all of IPython's
shortcuts, so that you can type normally if your output includes a text
widget or something. Normally, when the focus leaves the output element,
the shortcuts are enabled again. I guess that because you're deleting the
element, the 'focus left' event isn't firing properly.

This section of our code should illustrate how to work around it:
https://github.com/ipython/ipython/blob/50ab9a900d617e41ecca11093e4bed2c2bb5ac03/IPython/html/static/notebook/js/keyboardmanager.js#L550

Thomas


On 19 September 2014 08:55, Phil Elson <pelson.pub at gmail.com> wrote:

> I've got a case where I'm implementing a button which removes some output
> via JS when clicked.
> The removal is working as expected, but IPython's keyboard events are no
> longer firing after the button has been clicked.
>
> Essentially I have a single cell with the following:
>
> from IPython.display import HTML
>
> HTML("""
> <button id="my_button" text="Click me to remove!">Click me</button>
>
> <script>
> $("#my_button").click(function() {
>     $("#my_button").remove()
> });
> </script>
> """)
>
> This is part of a more complex system which cannot currently make use of
> the widget infrastructure, so wonder if anybody can give me any clues as to
> how to prevent the IPython keyboard short-cuts from disappearing once the
> button is pressed?
>
> Thanks!
>
> Phil
>
>
>
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