Allow opening images/links/etc dynamically instead of something hard-coded

[avahe-kellenberger]

What do you want

I want to be able to open images, links, etc. in a dynamic fashion that I can modify in my configuration.

Why

Currently, feh is hard coded as the image viewer. It would be nice to have a user-configurable option for images and links so it would work on all systems and could fit the specific preferences of each user.

Implementation hints

Have an editable command in the config file that substitutes %s with the image/url.

E.g. (default, but modifiable)

{
    "image": "feh %s",
    "url": "xdg-open %s"
}

Cordless would invoke the command substituting all instances of %s

[roket1428]

Would be very nice.

[NilsIrl]

I think you may be able to change the image viewer with the ImageViewer, setting in your config file.

[Bios-Marcel]

This has been added