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bug#4880: marked as done (point moves in other dired windows)


From: Emacs bug Tracking System
Subject: bug#4880: marked as done (point moves in other dired windows)
Date: Thu, 12 Nov 2009 22:45:04 +0000

Your message dated Thu, 12 Nov 2009 17:38:51 -0500
with message-id <address@hidden>
and subject line Re: bug#4880: point moves in other dired windows
has caused the Emacs bug report #4880,
regarding point moves in other dired windows
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
4880: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=4880
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: point moves in other dired windows Date: Fri, 6 Nov 2009 16:35:32 +0100
I have done this in 23.1 and in the current cvs version:

emacs -q /tmp
C-x 2 g

Point in the *other* window now goes to the beginning of the buffer,
which was unexpected for me.

dired-revert saves the old point, but only for the current window. The
enclosed patch fixes it so that
dired-revert saves and restores the point in all windows showing that
dired buffer.

$ diff -c dired.el.~1.436~ dired.el
*** dired.el.~1.436~    2009-11-06 13:29:08.000000000 +0100
--- dired.el    2009-11-06 15:35:29.000000000 +0100
***************
*** 1103,1110 ****
  Preserves old cursor, marks/flags, hidden-p."
    (widen)                             ; just in case user narrowed
    (let ((modflag (buffer-modified-p))
!       (opoint (point))
!       (ofile (dired-get-filename nil t))
        (mark-alist nil)                ; save marked files
        (hidden-subdirs (dired-remember-hidden))
        (old-subdir-alist (cdr (reverse dired-subdir-alist))) ; except pwd
--- 1103,1109 ----
  Preserves old cursor, marks/flags, hidden-p."
    (widen)                             ; just in case user narrowed
    (let ((modflag (buffer-modified-p))
!       (positions (dired-save-positions))
        (mark-alist nil)                ; save marked files
        (hidden-subdirs (dired-remember-hidden))
        (old-subdir-alist (cdr (reverse dired-subdir-alist))) ; except pwd
***************
*** 1124,1132 ****
      ;; ... run the hook for the whole buffer, and only after markers
      ;; have been reinserted (else omitting in dired-x would omit marked files)
      (run-hooks 'dired-after-readin-hook)      ; no need to narrow
!     (or (and ofile (dired-goto-file ofile)) ; move cursor to where it
!       (goto-char opoint))             ; was before
!     (dired-move-to-filename)
      (save-excursion                   ; hide subdirs that were hidden
        (dolist (dir hidden-subdirs)
        (if (dired-goto-subdir dir)
--- 1123,1129 ----
      ;; ... run the hook for the whole buffer, and only after markers
      ;; have been reinserted (else omitting in dired-x would omit marked files)
      (run-hooks 'dired-after-readin-hook)      ; no need to narrow
!     (dired-restore-positions positions)
      (save-excursion                   ; hide subdirs that were hidden
        (dolist (dir hidden-subdirs)
        (if (dired-goto-subdir dir)
***************
*** 1140,1145 ****
--- 1137,1161 ----
  ;; Subroutines of dired-revert
  ;; Some of these are also used when inserting subdirs.

+ (defun dired-save-positions ()
+   "Store the current positions in all windows displaying this dired buffer.
+ Store both filename (if any) and point."
+   (mapcar (lambda (w)
+           (list w
+                 (with-selected-window w
+                   (dired-get-filename nil t))
+                 (window-point w)))
+         (get-buffer-window-list nil 0 t)))
+
+ (defun dired-restore-positions (positions)
+   "Restore POSITIONS saved with `dired-save-positions'."
+   (dolist (win-file-pos positions)
+     (with-selected-window (car win-file-pos)
+       (unless (and (nth 1 win-file-pos)
+                  (dired-goto-file (nth 1 win-file-pos)))
+       (goto-char (nth 2 win-file-pos))
+       (dired-move-to-filename)))))
+
  (defun dired-remember-marks (beg end)
    "Return alist of files and their marks, from BEG to END."
    (if selective-display                       ; must unhide to make this work.



--- End Message ---
--- Begin Message --- Subject: Re: bug#4880: point moves in other dired windows Date: Thu, 12 Nov 2009 17:38:51 -0500 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)
> dired-revert saves the old point, but only for the current window. The
> enclosed patch fixes it so that dired-revert saves and restores the
> point in all windows showing that dired buffer.

Thank you, installed,


        Stefan

--- End Message ---

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