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Re: pop-to-buffer and friends new behavior or bug?

From: Thierry Volpiatto
Subject: Re: pop-to-buffer and friends new behavior or bug?
Date: Sun, 19 Jun 2011 20:49:32 +0200
User-agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.50 (gnu/linux)

martin rudalics <address@hidden> writes:

>> In anything, i can browse image directory without quitting anything.
>> This function `anything-find-files-persistent-action', use
>> `display-buffer' and then display image with image-dired function in
>> this buffer.This doesn't work anymore (display-buffer).
>> The image is displayed ...in minibuffer!!!
>> However it is working fine if i use `switch-to-buffer'.
>> I have commited a fix at:
>> http://repo.or.cz/w/anything-config.git
>> where you can read the code.
>> To reproduce with old code (the one that use display-buffer):
>> M-x anything-find-files
>> navigate to an image directory.
>> hit C-u C-z on an image filename
>> You will have the image displayed in minibuffer and it is impossible to
>> quit.
>> The last code is working fine.
> Sorry, I build without image support so I won't be able to test this.
> Could you please try to edebug `display-buffer-reuse-window' and find
> out whether the line
>       (when (and (not (window-minibuffer-p window))
> is processed in this particular case?  If `window' is a minibuffer
> window, it should not be added to the set of candidate windows denoted
> by the variable `windows'.
This line return t for both windows, but the whole when clause return
nil for one of the 2 windows.
I will try to debug more (hard because i have to quit emacs at each
time) later.

Here the relevant piece of code:

--8<---------------cut here---------------start------------->8---
;; An image file and it is the second hit on C-z,
;; show the file in `image-dired'.
((string-match (image-file-name-regexp) candidate)
 (when (buffer-live-p image-dired-display-image-buffer)
   (kill-buffer image-dired-display-image-buffer))
 (image-dired-display-image candidate)
 (message nil)
 ;(switch-to-buffer image-dired-display-image-buffer) <<<< [1] 
 (display-buffer image-dired-display-image-buffer)    <<<< [2]
 (with-current-buffer image-dired-display-image-buffer
   (let ((exif-data (anything-ff-exif-data candidate)))
     (image-dired-update-property 'help-echo exif-data))))

--8<---------------cut here---------------end--------------->8---
See Capture-Emacs.png for [2]
See Capture-Emacs-1.png for [1]

Where [1] is what is expected.

After [2] C-g do nothing and i must quit Emacs.

> Thank you, martin
> PS: Basically, there would be already a bug if `window' were a minibuffer
> window in the test above because my first list is constructed by calling
> (window-list-1 nil 'nomini method-frame)
> where the 'nomini argument should filter out minibuffer windows.

A+ Thierry
Get my Gnupg key:
gpg --keyserver pgp.mit.edu --recv-keys 59F29997 

Attachment: Capture-Emacs-1.png
Description: PNG image

Attachment: Capture-Emacs.png
Description: PNG image

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