2

I wanted to have .chm and .epub files thumbnailed in Nautilus. I followed instructions presented here: https://askubuntu.com/a/266323/119832 with no effect. Provided thumbnailers and their installation scripts didn't change anything. So I created my own script and tried to pass it into configuration. Still no effect. I've tried *.thumbnailer file approach:

$ cat ./.local/share/thumbnailers/chm.thumbnailer
[Thumbnailer Entry]
Exec=/home/mariusz/Pobrane/nds-thumb/chm-thumb %i %o
MimeType=application@vnd.ms-htmlhelp;

And configuring GNOME directly:

$ gconftool-2 -s "/desktop/gnome/thumbnailers/application@epub/enable" -t boolean 'true'
$ gconftool-2 -s "/desktop/gnome/thumbnailers/application@epub/command" -t string "/usr/bin/epub-thumbnailer %i %o %s"

And files still have this icon:

icon

I've tried to undo customizations:

$ rm -rf ~/.gconf/desktop/gnome/thumbnailers
$ gconftool-2 --recursive-unset /desktop/gnome/thumbnailers

and removed thumbnails already stored in ~/.thumbnails.

Both images and videos are thumbnailed properly.

OS and GNOME version:

$ gnome-shell --version
GNOME Shell 3.4.1
$ cat /etc/issue
Ubuntu 12.04.2 LTS \n \l

Is there a way to solve this problem or to debug it?

Community
  • 1
Nykakin
  • 3,744

1 Answers1

3

The gconf approach is for Gnome 2 only. For Gnome 3 (Ubuntu 11.10 onwards) the ~/.local/share/thumbnailers (or /usr/share/thumbnailers) is the correct one.

And your problem is that you mixed the 2 approaches. This line:

MimeType=application@vnd.ms-htmlhelp;

Should actually be:

MimeType=application/vnd.ms-htmlhelp;

Basically, replace @ for / and it should work. And I also recommend adding application/x-chm to the list, just in case.

You see, @ was just an (ugly) workaround gconf required since / was not a valid char for key names (it is used to indicate key hierarchy).

But apart from the now obsolete gconf, mime types are always defined with /.

MestreLion
  • 20,086