bug#14435: 24.3.50; Co-operation of doc-view + desktop-save-mode, save-place etc.

[Tassilo Horn <tsdh@gnu.org>]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>   1. When opening a doc that already has cached images, you'll only see
>>      the raw contents but no image.  In order to make the image appear,
>>      you have to do something like switch pages or scroll.
>
> That was my main test case while writing the patch, so "it works for me".
> Could you give a detailed recipe?

Sure.

  1. emacs -Q
  2. C-x C-f some.pdf
     conversion is done and I see the first page of the PDF
  3. k
  4. C-x C-f some.pdf
     I only see the raw PDF contents
  5. <down>
     Now I see the image.

>>   2. When splitting a doc-view window, the new window only shows the raw
>>      contents.  In order to make the image appear, you need to select
>>      the new window once.
>
> Same here: it works for me.  So please provide a recipe.

Hm, when I did C-x 2 or C-x 3 after step 5 above, I used to see the raw
PDF contents in the new window, but now I get the image immediately.

But the problem still happens with my usual emacs config, i.e., without
-Q.  The only configuration wrt. doc-view is

    (setq doc-view-resolution 200).

and

    ;; Enable ImageMagick
    (when (fboundp 'imagemagick-types)
      (setq imagemagick-render-type 1)
      (imagemagick-register-types))

for image-mode.  That doesn't seem to be needed anymore, so I've removed
it.  But that doesn't change anything...

Ah, now I found the difference.  You get that behavior when you disable
`scroll-bar-mode' as I do.

Bye,
Tassilo