Subject: 24.3.1; [PATCH] image-dired-dired-toggle-marked-thumbs conflicts with other modes using overlays
From: E Sabof <[email-masked]>
To: [email-masked]
Date: Mon, 3 Jun 2013 14:28:28 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

One such mode is stripe-buffer, which can be fonud here:

https://github.com/sabof/stripe-buffer

the definition below fixes the problem.

Evgeni

(ad-unadvise 'image-dired-dired-toggle-marked-thumbs) ; stripe-buffer
monkey-patches the function.

 (defun image-dired-dired-toggle-marked-thumbs (&optional arg)
    "Toggle thumbnails in front of file names in the dired buffer.
If no marked file could be found, insert or hide thumbnails on the
current line.  ARG, if non-nil, specifies the files to use instead
of the marked files.  If ARG is an integer, use the next ARG (or
previous -ARG, if ARG<0) files."
    (interactive "P")
    (dired-map-over-marks
     (let* ((image-pos  (dired-move-to-filename))
            (image-file (dired-get-filename nil t))
            thumb-file
            overlay)
       (when (and image-file
                  (string-match-p (image-file-name-regexp) image-file))
         (setq thumb-file (image-dired-get-thumbnail-image image-file))
         ;; If image is not already added, then add it.
         (let* (( cur-ovs (overlays-in (point) (1+ (point))))
                ( thumb-ov (car (cl-remove-if-not
                                 (lambda (ov) (overlay-get ov 'thumb-file))
                                 cur-ovs))))
           (if thumb-ov
               (delete-overlay thumb-ov)
               (progn
                 (put-image thumb-file image-pos)
                 (setq overlay
                       (cl-loop for o in (overlays-in (point) (1+ (point)))
                                when (overlay-get o 'put-image) collect o
into ov
                                finally return (car ov)))
                 (overlay-put overlay 'image-file image-file)
                 (overlay-put overlay 'thumb-file thumb-file))))))
     arg             ; Show or hide image on ARG next files.
     'show-progress) ; Update dired display after each image is updated.
    (add-hook 'dired-after-readin-hook
              'image-dired-dired-after-readin-hook nil t))