GNU bug report logs - #1415
23.0.60; display-buffer doesn't honor NOT-THIS-WINDOW argument

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Package: emacs;

Reported by: Helmut Eller <eller.helmut <at> gmail.com>

Date: Mon, 24 Nov 2008 04:20:02 UTC

Severity: normal

Done: martin rudalics <rudalics <at> gmx.at>

Bug is archived. No further changes may be made.

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From: Helmut Eller <eller.helmut <at> gmail.com>
To: emacs-pretest-bug <at> gnu.org
Subject: bug#1415: 23.0.60; display-buffer doesn't honor NOT-THIS-WINDOW argument
Date: Sat, 22 Nov 2008 18:01:37 +0100

I think that display-buffer returns sometimes the selected window even
if the NOT-THIS-WINDOW argument is true.  Here is a test case:

(progn
  (defun display-buffer-checked (buffer)
    (let ((selected (selected-window))
          (window (display-buffer buffer t)))
      (when (eq selected window)
        (error "display-buffer returned selected window"))
      window))
  
  (let ((foo (get-buffer-create "foo"))
        (bar (get-buffer-create "bar")))
    (select-window (get-buffer-window "*scratch*"))
    (save-selected-window 
      (select-window (display-buffer-checked foo)))
    (save-selected-window 
      (select-window (display-buffer-checked bar)))))


display-buffer-checked just calls display-buffer and checks that the
returned window isn't the selected window.  From looking at the code of
display-buffer, I would say that display-buffer returns the lru window
even if that's the selected window.

Helmut.


In GNU Emacs 23.0.60.10 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2008-11-22 on xaital
Windowing system distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--without-sound' '--without-pop' '--without-gif' '--without-tiff''
This bug report was last modified 16 years and 239 days ago.

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