Drag-and-Drop Between Wayland and XWayland Applications

[xsxun]

Hi everyone,

I’ve noticed that in Niri(with xwayland-satellite), drag-and-drop operations do not work from Wayland applications to XWayland (X11) applications.

For example, when using Dolphin (Wayland) as the file manager, it’s currently not possible to drag a file into ITK-SNAP or other legacy applications running under XWayland to open it. The operation simply does nothing, suggesting that cross-protocol DnD handling between Wayland and XWayland is not functioning.

I’m wondering whether this is:
• A known limitation of Niri’s current Wayland–XWayland integration,
• Or an area still under development or discussion.

It would be great to know if there are plans or possible workarounds for enabling DnD between Wayland and XWayland clients, as this affects workflows that rely on interoperability between modern and legacy applications.

Has anyone else encountered this issue or found any relevant discussions or upstream references related to it? ：）