Re: [Orgmode] Bug: inline image display not working when org-indent-mode active, follow-up

[Martin Pohlack]

Hi,

On 05.08.2010 04:19, Erik Iverson wrote:
> Hello,
>
> I am using the latest org pulled from git.
>
> In the past few weeks, I found that the overlays of inline images in my org-mode
> files would flash quickly and then be deleted when using org-indent-mode. This
> also happened when re-running an org-babel source block that generates graphical
> output, even without org-indent-mode turned on. [1]
>
> I believe I've tracked this down to the following patch,
>
> http://www.mail-archive.com/address@hidden/msg25738.html
>
> What I think is happening, is that org-indent-mode (or alternatively, the
> org-babel result insertion process) must be triggering the
> org-display-inline-modification-hook, which deletes the overlay. This
> intuitively makes sense to me in both cases.
>
> I do not know how to fix this unfortunately, but I think this is the correct
> diagnosis.  For now, I've simply removed the function hook from the ov
> modification-hooks, and all seems well.

If a functions want to elide trigger the modification hooks it should
bind: inhibit-modification-hooks.

From 
http://www.gnu.org/software/emacs/elisp/html_node/Special-Properties.html:

> modification-hooks
>     If a character has the property modification-hooks, then its
>     value should be a list of functions; modifying that character
>     calls all of those functions. Each function receives two
>     arguments: the beginning and end of the part of the buffer being
>     modified. Note that if a particular modification hook function
>     appears on several characters being modified by a single
>     primitive, you can't predict how many times the function will be
>     called.
>
>     If these functions modify the buffer, they should bind
>     inhibit-modification-hooks to t around doing so, to avoid
>     confusing the internal mechanism that calls these hooks.
>
>     Overlays also support the modification-hooks property, but the
>     details are somewhat different (see Overlay Properties).

Could you try to find out the path from where these modifications
occur, insert a relevant bind there, and see if this helps?

HTH,
Martin