add new binding?

[hemna]

Is there a way to add a new binding after the app has started up? I've tried appending a Binding object to the BINDINGS class member, but that doesn't seem to do anything.

I'm adding tabs to my TabbedContent on the fly and want to add a binding to the tab so the user can easily switch between tabs.

[hemna]

Looks like I found it looking through the app.py source code.

self.bind(keys, action, description).

maybe I missed it in the documentation?

[willmcgugan]

You should consider bindings to be static in nature. The bind function should probably be private now.

If your keys are dynamic, you could handle the Key message directly.

[willmcgugan]

All due respect, that is nonsense. You can still respond to key events in any way you like.

[hemna]

Not alllowing bindings to be added on the fly in this situation isn't nonsense.

[willmcgugan]

Nothing is preventing you implementing the functionality you describe. You don't need to add bindings at runtime. Handling keys is covered in the Input section in the guide.

[hemna]

Then it's not a binding, and it doesn't show up in the footer automatically so users can see that the key binding is made for that tab. I don't understand the resistance for allowing a good user experience by allowing dynamic bindings. Many UIs allow users to change the key bindings for commands as well. Considering bindings static at app startup eliminates that flexibility.
Anyway, I appreciate your responses.

[willmcgugan]

I suspect this is an example of an XY problem. You asked me how to add new bindings, but not what you are trying to achieve with regards to keys. If you were to elaborate on that, I suspect it could be solved with dynamic actions or keymaps.

I am not no forever to adding bindings at runtime, just that I haven't ever found the need.

[hemna]

Thanks for all of your help. For what it's worth, my app is getting closer to being done. thought I would share an asciinema recording of it.

This is a terminal app for sending APRS messages to the Ham Radio APRS network. It works connecting via the internet to the APRS-IS servers or over an actual ham radio to a tcpkiss socket.

https://asciinema.org/a/Pelwtk7Yk6hOnqUIQDvU1piGh

[willmcgugan]

Looks nifty! You might want to share it on our Discord channel.