import with non-file intent does not work

[braindevices]

the sharing from DroidFS to openkeychain works fine.

However, unfortunately directly share non-file content does not work:

• openkeychain->DroidFS does not work
• in simpletexteditor, select text then try to share to DroidFS has same failure

1. in openkeychain click Encrypt/decrypt
2. choose a gpg file to decrypt
3. click share
4. choose encrypt with droidfs
5. choose/unlock a vault path
6. click on check mark on the top
7. Error: Failed to handle the share request.

Is this a bug? I guess DroidFS should provide a UI to add file name, otherwise the share will always fail since the content shared by openkeychain does not have filename at all.

Problem is here: https://github.com/hardcore-sushi/DroidFS/blob/967d4551c57abbc9febd5f23f6a7fd1af4118b89/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivityDrop.kt#L38C43-L38C79

Instead of throw error, we have to handle the uri==null and try receivingIntent.getData() to get the actual content uri.