GNU bug report logs - #9543
23.3.50; help-echo property

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Package: emacs;

Reported by: Leo <sdl.web <at> gmail.com>

Date: Sun, 18 Sep 2011 14:06:01 UTC

Severity: normal

Found in version 23.3.50

Done: Leo <sdl.web <at> gmail.com>

Bug is archived. No further changes may be made.

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Report forwarded to cyd <at> stupidchicken.com, bug-gnu-emacs <at> gnu.org:
bug#9543; Package emacs. (Sun, 18 Sep 2011 14:06:01 GMT) Full text and rfc822 format available.
Acknowledgement sent to Leo <sdl.web <at> gmail.com>:
New bug report received and forwarded. Copy sent to cyd <at> stupidchicken.com, bug-gnu-emacs <at> gnu.org. (Sun, 18 Sep 2011 14:06:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Leo <sdl.web <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.3.50; help-echo property
Date: Sun, 18 Sep 2011 21:59:39 +0800

1. Emacs -Q

2. eval
  (put 'x 'risky-local-variable t)
  (setq x '(:eval (propertize "x" 'help-echo (message "Wow"))))
  (push '("" x) global-mode-string)

3. Move point around and check how many Wow's are printed in *Messages*
   buffer

The form (message "Wow") is eval'd each time mode-line is updated even
though one didn't move mouse over the 'x' string on the mode-line.

If the help-echo property is a function, it is only called when one
moves the mouse over 'x'.

Why this difference?

Leo
Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#9543; Package emacs. (Mon, 19 Sep 2011 13:03:01 GMT) Full text and rfc822 format available.

Message #8 received at 9543 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Leo <sdl.web <at> gmail.com>
Cc: Chong Yidong <cyd <at> stupidchicken.com>, 9543 <at> debbugs.gnu.org
Subject: Re: bug#9543: 23.3.50; help-echo property
Date: Mon, 19 Sep 2011 08:57:43 -0400

>   (setq x '(:eval (propertize "x" 'help-echo (message "Wow"))))

Hint: try to replace `help-echo' with `toto' and see what happens.


        Stefan
Reply sent to Leo <sdl.web <at> gmail.com>:
You have taken responsibility. (Mon, 19 Sep 2011 14:05:05 GMT) Full text and rfc822 format available.
Notification sent to Leo <sdl.web <at> gmail.com>:
bug acknowledged by developer. (Mon, 19 Sep 2011 14:05:06 GMT) Full text and rfc822 format available.

Message #13 received at 9543-done <at> debbugs.gnu.org (full text, mbox):

From: Leo <sdl.web <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Chong Yidong <cyd <at> stupidchicken.com>, 9543-done <at> debbugs.gnu.org
Subject: Re: bug#9543: 23.3.50; help-echo property
Date: Mon, 19 Sep 2011 21:58:46 +0800

On 2011-09-19 20:57 +0800, Stefan Monnier wrote:
>>   (setq x '(:eval (propertize "x" 'help-echo (message "Wow"))))
>
> Hint: try to replace `help-echo' with `toto' and see what happens.
>
>
>         Stefan

Sorry for the noise. I missed a ' there.

Leo
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Tue, 18 Oct 2011 11:24:03 GMT) Full text and rfc822 format available.
This bug report was last modified 13 years and 250 days ago.

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