File dialog issues on Linux desktop

[dgulotta]

Problem
I encountered two issues with the file dialog in the desktop platform on Linux:

1. When I first open the dialog, I can see folders but not files. Files only appear after I have gone back and forth a few times between different folders. It seems like navigating from a folder to its parent is what finally causes files to appear.
2. After I select a file, the text next to the "Choose File" button still says "no file selected".

Steps To Reproduce

Steps to reproduce the behavior:

• Create an app that has an input { type: "file" }.
• Enable the "desktop" feature of dioxus.
• cargo run on Linux.
• Click the Choose File button.
• After moving back and forth between folders until files appear, select a file and click OK.

Environment:

• Dioxus version: 0.6.1
• Rust version: 1.83.0
• OS info: Void Linux with Xfce 4.20
• App platform: desktop

[dgulotta]

I think the first issue arises because zenity is run with the option "--file-filter name", which means that it is being asked to show only files named "name". I have not yet figured out how Dioxus calls zenity.

[dgulotta]

Actually, what is happening is this line is being called with file_extensions being empty:

dioxus/packages/desktop/src/file_upload.rs

Line 92 in 61b55c9

dialog = dialog.add_filter("name", file_extensions.as_slice());

rfd interprets this as "don't match any files".