Allow event-specific notification via IPC

[EoceneMiacid]

Currently, IPC allows us to subscribe to any window event like so:

{"method":"window-rules/events/watch"}

This is overkill in practice, because it will cause Wayfire to spam large amounts of data to the socket, all of which requires to be parsed and processed by the receiver, only for the huge majority of it to be discarded afterwards.

So, it would be much more efficient (on both ends) if we could specify which events we are interested in. In my case, I only need information about view-mapped and view-unmapped events.

So, if we could do something like

{"method":"window-rules/events/watch","events":{"view-mapped,"view-unmapped"}}

(assuming the syntax is correct)

This would save Wayfire a lot of work, and make using IPC much nicer.

Thanks for considering.

[ammen99]

This is already available, take a look at the python bindings ;)

https://github.com/WayfireWM/pywayfire/blob/4ad8960c1408cac3cf3640b3196402ebc85ab4f0/wayfire/ipc.py#L215 https://github.com/WayfireWM/pywayfire/blob/4ad8960c1408cac3cf3640b3196402ebc85ab4f0/scripts/inactive-alpha.py#L8

[EoceneMiacid]

Very interesting! Can you provide an example of what Json message to write for a specific event in this case?

[marcusbritanicus]

I think the json would be something like this:

{
    "method": "window-rules/events/watch",
    "data": {
        "events": [ "view-mapped", "view-unmapped" ]
    }
}

E&OE. Please correct me if something is wrong.

[EoceneMiacid]

No this is perfect, it's working exactly as expected. Awesome :)

Thank you so much!