Fixed a crash that happened when locking the screen.

[broo2s]

This extension crashed for me on Ubuntu 18.04 whenever I locked the screen and sometimes randomly. I found out this was due to "port.profiles is undefined" error, described in #26 and #27.

My fix is very naive, it may not be a perfect solution. It works for me so far and it should not break anything more than it is right now.

[lestcape]

This is a workaround to this problem:
https://bugzilla.gnome.org/show_bug.cgi?id=783578

Also please see a related issue at a higher level in gjs:
https://gitlab.gnome.org/GNOME/gjs/issues/109

[kgshank]

@lestcape I hope the bug is resolved, I had to resort to ugly solution because of the same problem

[lestcape]

@kgshank Sorry, but i don't think that it will be resolved soon. The original Bugzilla issue of libgnome-volume-control was not migrate to gitlab. So, it was forgot in the migration and not one care about it because libgnome-volume-control is a private library in gnome-shell. So, they fix only what they use and not care to be fully functional, because is not public.

For the another hand in gjs this was accepted as a feature request , not as a bug. This is because in gjs is not a bug really how occurs in libgnome-volume-control. A feature request in a gjs will have not priority at all, because of the big complexity of the project and the few people working on it ensure that probably only bugs will be resolved and not features request. So, probably will never be resolved also there.