Re: clock based context settings

From: David Maus <maus.david@gmail.com>
To: Richard Riley <rileyrgdev@googlemail.com>
Cc: Emacs-orgmode mailing list <emacs-orgmode@gnu.org>
Subject: Re: clock based context settings
Date: Wed, 20 Jan 2010 09:30:41 +0100	[thread overview]
Message-ID: <873a21rxe6.wl%maus.david@gmail.com> (raw)
In-Reply-To: <4b562f2a.0c07560a.206e.ffff99b6@mx.google.com>

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Hi Richard,

At Tue, 19 Jan 2010 23:16:08 +0100,
Richard Riley wrote:
>
>
> I would like to be able to execute arbitrary elisp when I clock in or
> out of a certain org.item This would be very, very useful for defining
> variables or even keystrokes on a "per project" basis. Ideally it would
> work using inheritance so if an item does not have something then the
> project or file level values would be used.
>
> e.g at the file level:
>
> #+CLOCKINEXEC: (setq curr-url "project1.com")
>
> Or at the org item level
>
> ** touch up picture of the org logo
>   :PROPERTIES:
>   :CLOCKINEXEC:   (setq curr-url "org-mode.com/images")
>   :END:
>
> Would others think this might be useful or is there another way/approach
> to achieve something similar?

You could use the org-clock-hooks `org-clock-in-hook',
`org-clock-out-hook' and `org-clock-cancel-hook' in combination with a
function that checks for the desired conditions and sets the variables
accordingly.

A question that came in my mind: What happens if you clock out or
cancel a clock? Are the variables kept or set to a default value? Or
to the value they had before clocking in?

Regards

 -- David

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