[FEATURE] Window TTL

[heroin-moose]

Description of the requested feature

Consider giving a window an optional time-to-live attribute: when the window has been opened it has ${TTL} seconds to live. After that the window is automatically closed. Subsequent eww open <window> calls should reset the timer.

A typical use case would a desktop notification of a sort (e.g. brightness or volume level).

Proposed configuration syntax

(defwindow brightness-level :time-to-live "5s" [...])

Additional context

No response

[skiletro]

I doubt this would be added since it can be implemented just using scripts instead, but it definitely be a lot easier

[heroin-moose]

And far less racy.

[viandoxdev]

And far less racy.

I agree, this is one of the features it would make sense to implement into eww. I've done this with scripts before but it usually involves lock files and timestamps or UUIDs. Overall more complexity than I would hope for a relatively simple (and useful) behavior. I might look into it some time later (on vacation right now) but no promises.

[elkowar]

Funny that you mention this, I've literally started working on this exact feature on the side a few days ago! I feel as though it definitely makes sense to have, as it makes eww immediately 10x more convenient for popups (i.e. a volume popup when changing volume)

This would then also harmonize very well with potentially adding window args (#431) which I still want to get back into soon

[elkowar]

Implemented in a9a35c1