Flatpak - Niri / Hyperland Clipboard / Copy-Paste not working

[quexten]

On some desktop environments, on Wayland, the clipboard does not not work properly on hyperland + flatpak. This is because the appropriate protocol is not available in flatpak.

Gnome (working) does not implement zwlr_data_control_manager_v1. #21068 adds a workaround via the RemoteDesktop portal.

KDE (working) should be working currently.

Hyperland, Niri (not working), do not work. As per @unlimitedsola's comment here #13431 (comment), the desktop environments do not expose the necessary wayland protocols to flatpak.

Cosmic (not working) - Remote desktop portal not supported, zwlr_data_control_manager_v1 not implemented according to @Linus-Sexy-Tips

There is a suggested workaround:

If your application has a window, please use the appropriate Wayland protocols for interacting with the Wayland clipboard (wl_data_device from the core Wayland protocol, the primary_selection protocol for the primary selection), for example via the smithay-clipboard crate. However, currently the clipboard may be used without a window present, when clearing the clipboard from the background. Further, we cannot perform native calls from the process that has the window available - the renderer process - without workarounds within electron.

Ideally, electron would fix this. Another hacky workaround would be to spawn an invisible window like wl-clipboard does.

[bitwarden-bot]

Thank you for reporting this issue! We've added this to our internal tracking system.
ID: PM-39122
Link (for internal use): https://bitwarden.atlassian.net/browse/PM-39122

[Linus-Sexy-Tips]

I can note that COSMIC does not work without X11, as zwlr_data_control_manager_v1 is not implemented.
pop-os/cosmic-comp#2493