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Re: set-temporary-overlay-map doesn't work for me

From: Stefan Monnier
Subject: Re: set-temporary-overlay-map doesn't work for me
Date: Wed, 27 Nov 2013 17:26:07 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

> I have two quite simple functions:

> (defun my-temp ()
>   (interactive)
>   (set-temporary-overlay-map
>    (let ((map (make-sparse-keymap)))
>      (define-key map [mouse-1] 'my-mouse-down)
>      map)))

> (defun my-mouse-down ()
>   (interactive)
>   (message "Word is: %s " (thing-at-point 'word)))

> I evaluate them, then M-x my-temp RET, then mouse click (left button) on
> "interactive" world and I'm expecting to see "Word is "interactive""
> message in the minibuffer. But no messages appear! I cannot figure out
> why this code behaves in such way...

I think the problem is that clicking with your mouse will do two things:
`down-mouse-1' then `mouse-1' and the first will exit the temporary
overlay map.


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