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Re: Buffer menu fix

From: Nick Roberts
Subject: Re: Buffer menu fix
Date: Tue, 6 Sep 2005 13:16:54 +1200

Chong Yidong writes:
 > > With this patch header-line buttons in the buffer list buffer certainly
 > > respond to Mouse-1 but unfortunately they do this even when
 > > mouse-1-click-follows-link is nil.
 > This behavior is the same as Info-mode.  It makes sense because
 > mouse-1 on the header line would not set point, as it would in the
 > main editing area.

Well it breaks the idiom of mouse-1-click-follows-link.
(mouse-1-click-follows-link-except-for-Info-and-Buffer-menu ?).  If this is
the desired behaviour perhaps a note could be added to the doc for

 > > I don't think
 > >
 > >  > !                       (define-key map [follow-link] 'mouse-face)
 > >
 > > does anything in this case possibly because map here is a text property and
 > > not associated with a mode.
 > This deals with the case when Buffer-menu-use-header-line is nil.

OK, I understand now, perhaps there could be a comment.

 > > It would be best to omit the line
 > >
 > >  > !                       (define-key map [header-line down-mouse-1] 
 > > 'ignore)
 > >
 > > because then the header line can then respond to mouse-1 clicks and still 
 > > be
 > > dragged (try it on the mode-line to see what I mean).
 > You can drag it by clicking on any part of the header line outside the
 > button text.  Again, this is the same as Info-mode.

In that case I suggest that this is also changed in Info-mode.

 > >  > !                       (define-key map "\C-m"
 > >  > !                         `(lambda () (interactive)
 > >  > !                            (Buffer-menu-sort ,column)))
 > >  
 > > I don't see the point of this as you can't place point on the header line.
 > This deals with the case when Buffer-menu-use-header-line is nil.

I see.

 > > In summary, I don't see how to solve the problem (neither did the original
 > > author presumably), all I can do is pull your solution apart.
 > With my code, clicking mouse-1 actually works, where previously it
 > didn't.  If there are any other problems with my solution, feel free
 > to point them out.

Unlike follow-link, the tooltip shows the mouse-2 binding rather than mouse-1.


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