From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: How to execute code on cursor move
Date: Sat, 13 Jul 2013 14:03:33 +0300 [thread overview]
Message-ID: <83vc4e4t8a.fsf@gnu.org> (raw)
In-Reply-To: <20130713103903.GA11006@kuru.dyndns-at-home.com>
> Date: Sat, 13 Jul 2013 12:39:03 +0200
> From: Suvayu Ali <fatkasuvayu+linux@gmail.com>
>
> I want to check a text property and display in the minibuffer depending
> on context (in my case, on an org-link).
>
> This is what I have so far (working):
>
> (add-hook 'post-command-hook
> (lambda()
> (if (eq (get-text-property (point) 'face) 'org-link)
> (display-message-or-buffer
> (get-text-property (point) 'help-echo)))))
>
> Is using the post-command-hook a good idea?
No, because it slows down Emacs's _every_ command.
> Is there something better?
There are the 'point-entered' and 'point-left' text properties. Make
sure they cover the buffer positions where you want to display the
message in the echo area, and the rest should be easy.
next prev parent reply other threads:[~2013-07-13 11:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-13 10:39 How to execute code on cursor move Suvayu Ali
2013-07-13 11:03 ` Eli Zaretskii [this message]
2013-07-13 13:28 ` Suvayu Ali
[not found] <<20130713103903.GA11006@kuru.dyndns-at-home.com>
[not found] ` <<83vc4e4t8a.fsf@gnu.org>
2013-07-13 13:26 ` Drew Adams
2013-07-13 15:32 ` Suvayu Ali
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