Cancel enabling of minor-mode.

Cancel enabling of minor-mode.

[Constantin Kulikov]

Can I somehow cancel enabling of my minor-mode?

Example of what I want:

(define-minor-mode test-mode
    "documentation"
    :init-value nil
    (if test-mode
        (if some-condition
            cancel enabling of test-mode. exit
          actions-when-enabling)
      actions-when-disabling))

Re: Cancel enabling of minor-mode.

[Stefan Monnier]

> Can I somehow cancel enabling of my minor-mode?
> Example of what I want:

> (define-minor-mode test-mode
>     "documentation"
>     :init-value nil
>     (if test-mode
>         (if some-condition
>             cancel enabling of test-mode. exit
>           actions-when-enabling)
>       actions-when-disabling))

To cancel, you can (setq test-mode nil).


        Stefan

Re: Cancel enabling of minor-mode.

[Nicolas Richard]

>> Can I somehow cancel enabling of my minor-mode?
>
> To cancel, you can (setq test-mode nil).

IIUC, it will still run any hook associated with the mode like for any
mode change (+ show the message "Test mode disabled"). Not too bad, but
not exactly like cancelling either. Perhaps some (user-error ...) would
be ok in that case ?

Otherwise, the OP could define a helper function `test-mode-maybe'
which would check and only activate if it's ok.

-- 
Nico.

Re: Cancel enabling of minor-mode.

[Stefan Monnier]

> IIUC, it will still run any hook associated with the mode like for any
> mode change (+ show the message "Test mode disabled"). Not too bad, but
> not exactly like cancelling either.

I guess it depends on your definition of "canceling".


        Stefan

Re: Cancel enabling of minor-mode.

[Constantin Kulikov]

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> it depends on your definition of "canceling"
As for me the (setq test-mode nil) works as I want. Thanks.

// But also it would be nice if I can avoid running hooks.



On 28 November 2013 19:06, Stefan Monnier <monnier@iro.umontreal.ca> wrote:

> > IIUC, it will still run any hook associated with the mode like for any
> > mode change (+ show the message "Test mode disabled"). Not too bad, but
> > not exactly like cancelling either.
>
> I guess it depends on your definition of "canceling".
>
>
>         Stefan
>
>

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Re: Cancel enabling of minor-mode.

[Constantin Kulikov]

> it depends on your definition of "canceling"
As for me the (setq test-mode nil) works as I want. Thanks.

// But also it would be nice if I can avoid running hooks.

Re: Cancel enabling of minor-mode.

[Constantin Kulikov]

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sorry, sent to wrong adress,
autocomplete fail :(
Please delete this thread or ignore it.

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