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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
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--- Begin Message ---
Subject: |
Re: bug#9543: 23.3.50; help-echo property |
Date: |
Mon, 19 Sep 2011 21:58:46 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.3.50 (Mac OS X 10.6.8) |
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
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