change yas/prompt-functions order when I call yas/insert-snippet

[redguardtoo]

What steps will reproduce the problem?

1. (require 'dropdown-list)
2. M-x yas/insert-snippet
3. You can see here only limited candidates are displayed in yas/dropdown-prompt if candidate window height is bigger than the screen height
4. I this case I think yas/completing-prompt is better

My suggestion:
Use yas/completing-prompt when and ONLY when I call yas/insert-snippet.

Any work around could be found without changing yasnippet code?

yasnippet 0.7.0

[joaotavora]

Use emacs advice:

(defadvice yas/insert-snippet (around use-completing-prompt activate)
  "Use `yas/completing-prompt' for `yas/prompt-functions' but only here..."
  (let ((yas/prompt-functions '(yas/completing-prompt)))
    ad-do-it))

[redguardtoo]

perfect

[chenyangguang]

niubility