Support for InputCapture and RemoteDesktop Wayland portals

[dmac-au]

I installed Deskflow (Synergy open source app) and noticed an error in Cosmic on wayland:

[2024-11-08T04:11:34] ERROR: failed to initialize input capture session, quitting: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.InputCapture” on object at path /org/freedesktop/portal/desktop

I thought I could then instead use the Windows PC as the host and the Linux as the guest, but then I got this error:

[2024-11-08T04:23:12] ERROR: failed to initialize remote desktop session: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: No such interface “org.freedesktop.portal.RemoteDesktop”

Can we add InputCapture and RemoteDesktop portals to the roadmap if they aren't already?

I probably have to switch back to KDE for the time being (I haven't tested it with Deskflow yet, they will get the same bug report if it doesn't work)

[ids1024]

A partly complete prototype for the RemoteDesktop portal exists, but isn't merged: pop-os/xdg-desktop-portal-cosmic#94, #465.

There hasn't been any work specifically on InputCapture so far.

[Drakulix]

Also this isn't a compositor issue, but rather a portal issue.

[ids1024]

Yeah, though both features require underlying support from the compositor.

I think we also have several issues on multiple repositories related to RemoteDesktop/synergy-like uses at this point. (Good to know it seems to be a popular feature.)

[dmac-au]

I found this issue in the portals repo. I'll close this here.