Can the admin pageparts emit an event when a new patepart is created?

[tarjei]

Hi, I've made a pagepart that uses some JS in the admin form to show / hide fields and also to run a select2 selector on one of the fields. My problem now is in having an event to hook up some init code when a new pagepart is created.

Would it be possible for _pagepart_editor.js to emit an event when a new pagepart is created containing some metadata (pagepart class for example) that external scripts could listen to?

[roderik]

Seems like a good addition, can you send a PR?

[tarjei]

I'll see what I can cook up. Any input on conventions in the code I should be aware of? Do you do something like this somewhere else?