GNU bug report logs - #13979
24.3.50; NS: scroll-bar not draggable

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From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 13979 <at> debbugs.gnu.org, Darren Hoo <darren.hoo <at> gmail.com>
Subject: bug#13979: 24.3.50; NS: scroll-bar not draggable
Date: Sun, 17 Mar 2013 10:45:45 +0100

Hello.

17 mar 2013 kl. 03:43 skrev Stefan Monnier <monnier <at> iro.umontreal.ca>:

>> turn on scroll-bar mode
>> (scroll-bar-mode t)
> 
> They're on by default, aren't they?
> 
>> then open a file and drag the scroll bar, it shows:
>> `mouse-on-link-p: Wrong type argument: listp, handle'
>> the stacktrace:
>> Debugger entered--Lisp error: (wrong-type-argument listp handle)
>>  mouse-posn-property((#<window 0x10506e250 on *info*>
>> vertical-scroll-bar (4 . 428) 95079520 handle) follow-link)
> 
> I can't reproduce it here on GNU/Linux.  I'm not sure if the format of
> the posn object quoted above is correct, but can you try the patch
> below (which is either a fix, or a workaround)?
> 

It may be a NS-specific error.  I can reproduce it on OSX.  Emacs-24.3 works fine though, so I assume there has been some change in common code, and that the NS code was not adjusted.

>> Also with scroll-bar turned on, horizontally splitted windows can not be
>> resized by dragging.
> 
> I can't reproduce the problem here, either.
> 

I can on OSX.
The patch below only changes the error message to

mouse-posn-property: Wrong type argument: integer-or-marker-p, vertical-scroll-bar

	Jan D.

> 
>        Stefan
> 
> 
> === modified file 'lisp/mouse.el'
> --- lisp/mouse.el	2013-03-09 17:14:24 +0000
> +++ lisp/mouse.el	2013-03-17 02:39:03 +0000
> @@ -709,7 +713,7 @@
>   (if (consp pos)
>       (let ((w (posn-window pos)) (pt (posn-point pos))
> 	    (str (posn-string pos)))
> -	(or (and str
> +	(or (and (consp str)
> 		 (get-text-property (cdr str) property (car str)))
> 	    (and pt
> 		 (get-char-property pt property w))))
> 
> 

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