I think there's two more things we need to address:

1. We probably shouldn't enable the get button, until some text has been entered.
2. We need to handle what renew does - there's no opportunity to change/set the name there at the moment, so maybe we need to make the renew button a 'clear', and then allow entering of a new id etc.

@Standard8 do we really need a renew button right now? The UX seems to not be clear enough here.
I would suggest that we replace the renew button by something like « Create a new URL », or maybe keep the first view displayed once we get the URL.

I think we should have a clear button (or create new url), so that people can generate a new URL, but renew isn't right IMO.

For the sake of clarify, we want a button to go back to the previous view instead of the renew button.

Basic outline of changes looks good, either myself or @dmose will need to give this a test & slightly more in-depth review before it can land.