[Request]: Ability to drag-and-drop multiple files at once to be match compared

[nekohayo]

Describe the request

I'd like to be able to either:

• Drag & drop multiple files at the same time into the app
• Maybe "Open With…" multiple files at once from Nautilus with this app? (currently it opens two separate Collision instances)

…and have the app simply compare whether their checksums match between each other, to tell me if they are the same files or if they differ :)

Currently it can be done but you have to do it in two steps, with a couple of extra clicks etc.

Implementation Details

• [x] This follows the GNOME HIG.

[GeopJr]

🤔 I like the idea but I don't know how we should differentiate if we should open two different instances or if we should compare them.

Maybe if there are exactly two files, but then if I wanted to just open them separately (as it's done now) I'd feel frustrated.

I can definitely add it to the Nautilus extension however, if there are two selected files, show a 'Compare' context item next to the 'Check Hashes' one.