File drag-and-drop does not work, warning in gdkselection-wayland.c

[iquat]

Describe the bug
While drag-and-drop to VLC works, drag-and-drop to audacious does not work.
I tried dragging files from nautilus and nemo file managers.

Steps to reproduce

1. Open audacious from a terminal with the "audacious" or "audacious -G" command
2. Open a folder with at least one audio file in a file manager (e.g. nautilus or nemo)
3. Use the mouse to drag-and-drop one file from the file manager to the playlist area of audacity

Expected behavior
I expect that the dragged file gets added to the playlist.

Additional information

• Audacious version and interface: Audacious 4.3.1-2.1build2, GTK
• Operating system and version: Ubuntu 24.04
• Desktop environment: GNOME 46, Wayland
• Logs (use LANG=C audacious -V for English output)

(audacious:111878): Gdk-WARNING **: 10:37:49.289: ../../../gdk/wayland/gdkselection-wayland.c:283: error reading selection buffer: Operation was cancelled

audacious-drag-n-drop.txt
audacious-drag-n-drop2.txt
The above two attachments might be the same, the difference is putting LANG=C before "audoacious -V".

[mschwendt]

JFTR, works here with both Audacious 4.3.1 and 4.4 (either GTK3/Qt6), GNOME Shell on Wayland and Nautilus.

[radioactiveman]

I can reproduce this on Ubuntu with Audacious' GTK interface and the Wayland backend.
Gimp was affected by the same problem: https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/927

@mschwendt: Are you sure you don't run Audacious via XWayland?

[greatquux]

using the default xwayland for audacious does not exhibit this problem, only when both are on wayland (insert wayland complaint here)