JabRef does not open files linked to entries

[i5qme2b944w3]

Telling JabRef to open a file (pdf, djvu, etc.) linked to an entry gives no response.

Expected response is an "Open with..." dialog, presumably using the xdg-desktop-portal service for Flatpak, so that the user can select an application outside of JabRef's sandbox to open the file.

Additional info:

• I'm using Debian 11, with KDE Plasma 5.17.5 desktop environment.

• I've tried using both relative and absolute file paths in entries, and neither work.

• JabRef installed from Snap instead of Flatpak successfully uses the expected "Open with..." dialog. So does Zotero installed from Flatpak. So as far as I can tell, the problem isn't with my xdg-desktop-portal setup, but I could be wrong.

• Telling JabRef to open URLs or DOIs succeeds: they are opened directly in my web browser, with no "Open with..." dialog first.

[LyzardKing]

@i5qme2b944w3
Is it the flatpak that has this issue? Does the snap package work properly?

[i5qme2b944w3]

It's the flatpak that has this issue; the snap package works properly. Sorry for the ambiguity.

[LyzardKing]

Not a problem! Thanks for opening the issue!
I mainly use the snap package, but I'll have a look at the flatpak.
If you find more issues between the two please let us know!

[LyzardKing]

@bilelmoussaoui
Sorry to ping you for this one, but do you have any idea on what is needed?
The files are in a subdirectory of /home//, so I was under the impression that filesystem=home would be enough.
Is a different runtime needed (i.e. the gnome one) to enable the xdg desktop integrations?

[i5qme2b944w3]

Just to check: was this the right place to open this issue? Or should I have opened it at the main JabRef repository?
I ask because I've spotted another issue with the flatpak package, and want to open it in the right place.

[LyzardKing]

This is the correct repo for flatpak-only issues.

[bilelmoussaoui]

@bilelmoussaoui
Sorry to ping you for this one, but do you have any idea on what is needed?
The files are in a subdirectory of /home//, so I was under the impression that filesystem=home would be enough.
Is a different runtime needed (i.e. the gnome one) to enable the xdg desktop integrations?

How are you opening the file?

[LyzardKing]

This will be solved with the linked PR.
In flatpak we cannot use xdg-open, but the java awt desktop integration still works.

[i5qme2b944w3]

Thanks, the issue is resolved now.