Wayland session management

[mahkoh]

Expected behavior of the wanted feature

For the purpose of testing my session management implementation with a real application, I want to add session management support to mpv. The interface would be as follows:

~$ mpv --help
Basic options:
 --session=name    the name of the wayland session to create or restore

This would default to the empty string. mpv would then compute hash($XDG_CURRENT_DESKTOP, session_name) and look up the resulting string as a file name under ~/.state/data/mpv/sessions/. If found, it would use the contents as the wayland session id.

If a new session is created, mpv saves the new session id in that file.

The session would contain a single window, the mpv window, which the compositor would then restore fullscreen/on the workspace/on the output where it was the last time the session was used.

What do you think?

Alternative behavior of the wanted feature

No response

Log File

No response

Sample Files

No response

[llyyr]

This seems good to me

[mxmilkiib]

couple of ignorant queries;

• does this encompass paths and playhead position? like watch_later, but just for running instance(s) on session save

my issue is with restoring a KDE Wayland session and having mpv restart but with no file actually loaded (let alone correct time position)

also;

• fwiw, how much further work would likely be need to extend support to XSMP under actual X11, if someone was maybe committed to implementing that in the future?

for the few DEs that [partially] support it in their *session system, etc

[mahkoh]

No this is only about window positions and such.

[Dudemanguy]

Implemented by #17732