Ido and Vimpulse/Viper and C-p, C-n

[Vegard Øye]

On 2011-04-15 12:58 +0100, Nikolai Weibull wrote:

> Is there any way of getting C-p and C-n do ido-prev-match and
> ido-next-match in Ido mode?

As it turns out, `ido-setup-hook' is not executed in the minibuffer,
so `viper-add-local-keys' creates a buffer-local binding for the main
buffer instead. (`ido-minibuffer-setup-hook' /is/ executed in the
minibuffer, though).

However, buffer-local bindings are a bad fit in any case, since
they will linger when the minibuffer is used for other things.
Command remapping works better:

    (add-hook 'ido-setup-hook
              (lambda ()
                (define-key ido-completion-map [remap vimpulse-abbrev-expand-before] 'ido-prev-match)
                (define-key ido-completion-map [remap vimpulse-abbrev-expand-after] 'ido-next-match)))

(Normally, `vimpulse-define-key' is used in these cases, but it works
at the mode level and isn't really fine-grained enough for the
minibuffer. Ido mode is seen as "active" both in the main buffer and
the minibuffer, while the `ido-completion-map' keymap is active /only/
in the minibuffer (by shadowing `minibuffer-local-completion-map').
Food for thought: a `-define-key' function which assignes state
bindings to keymaps rather than to modes will not have this
limitation.)

-- 
Vegard