Re: Speed commands

From: Carsten Dominik <dominik@uva.nl>
To: Dan Davison <davison@stats.ox.ac.uk>
Cc: Emacs-orgmode mailing list <emacs-orgmode@gnu.org>
Subject: Re: Speed commands
Date: Sun, 15 Nov 2009 14:27:03 +0100	[thread overview]
Message-ID: <0972299D-A2E7-47AC-B4A8-3E5A0C04D165@uva.nl> (raw)
In-Reply-To: <87pr7k1p8t.fsf@stats.ox.ac.uk>

Hi Dan, these are nice, but somehow I find the "n" command logical and  
the "p" command confusing :-)

- Carsten

On Nov 15, 2009, at 3:44 AM, Dan Davison wrote:

> Dan Davison <davison@stats.ox.ac.uk> writes:
>
>> Carsten Dominik <dominik@uva.nl> writes:
>>
>> <...>
>>> I am happy to have a discussion what additional
>>> commands should be present by default.
>>
>> I thought a speed command for scrolling through an org document  
>> might be
>> good -- move from heading to heading, displaying the next entry while
>> keeping all others hidden, and close subtrees as you leave them.
>
> Here are simplified versions of the forward- and backward-scroll speed
> commands that I'm suggesting.
>
> ---------------------------------------------------------
> (defun ded/org-show-next-heading-tidily ()
>  "Show next entry, keeping other entries closed."
>  (if (save-excursion (end-of-line) (outline-invisible-p))
>      (progn (org-show-entry) (show-children))
>    (outline-next-heading)
>    (unless (and (bolp) (org-on-heading-p))
>      (org-up-heading-safe)
>      (hide-subtree)
>      (error "Boundary reached"))
>    (org-overview)
>    (org-reveal t)
>    (org-show-entry)
>    (show-children)))
>
> (defun ded/org-show-previous-heading-tidily ()
>  "Show previous entry, keeping other entries closed."
>  (let ((pos (point)))
>    (outline-previous-heading)
>    (unless (and (< (point) pos) (bolp) (org-on-heading-p))
>      (goto-char pos)
>      (hide-subtree)
>      (error "Boundary reached"))
>    (org-overview)
>    (org-reveal t)
>    (org-show-entry)
>    (show-children)))
>
> (setq org-use-speed-commands t)
> (add-to-list 'org-speed-commands-user
>             '("n" ded/org-show-next-heading-tidily))
> (add-to-list 'org-speed-commands-user
>             '("p" ded/org-show-previous-heading-tidily))
> ---------------------------------------------------------
>
> Dan
>
>> Or is
>> there already an org command that does something like this?
>
>>
>> (Try starting with everything closed.)
>>
>> --------------------------------------------------------------
>> (defun ded/org-show-next-heading-tidily ()
>>  "Show next entry, keeping other entries closed."
>>  (if (save-excursion (end-of-line) (outline-invisible-p))
>>      (org-cycle)
>>    (let ((level (org-current-level)))
>>      (unless (org-heading-has-child-p) (org-cycle))
>>      (outline-next-heading)
>>      (if (< (org-current-level) level)
>>          (save-excursion
>>            (outline-backward-same-level 1)
>>            (org-cycle)))
>>      (if (and (bolp) (org-on-heading-p))
>>          (org-cycle)
>>        (outline-up-heading 1 t)
>>        (org-cycle)
>>        (error "Boundary reached")))))
>>
>> (setq org-use-speed-commands t)
>> (add-to-list 'org-speed-commands-user
>>             '("s" ded/org-show-next-heading-tidily))
>> --------------------------------------------------------------
>>
>> (<space> might be quite natural for this one, it seems to get used  
>> for
>> scrolling e.g. in dired and gnus)
>>
>> Dan
>>
>>
>>>
>>> - Carsten
>>>
>>>
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>>
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- Carsten