Emacs key binding fallback
- by rejeep
Hey,
I have a minor mode. If that mode is active and the user hits DEL, I
want to do some action, but only if some condition holds. If the
condition holds and the action is executed I want to do nothing more
after that. But if the condition fails, I don't want to do anything
and let the default DEL action execute.
Not sure how I could solve this. But I guess I could do it in two ways:
1)
I could rebind the DEL key to a function in the minor mode and then
check if the conditions holds ot not. But then how do I know what the
default command to DEL is?
2)
I could add a pre command hook like this. Execute the command and then
break the chain. But how do I break the chain?
(add-hook 'pre-command-hook
(lambda()
(when (equal last-input-event 'backspace)
;; Do something and then stop (do not execute the
;; command that backspace is bound to)
)))
In what way would you solve it? Thanks!
