I’d like to share a side-project that I finally got to a minimally-useful state this weekend, in case others find it useful …

I’d like to share a side-project that I finally got to a minimally-useful state this weekend, in case others find it useful

Repository: https://gitlab.com/jokeyrhyme/xdp-hook-rs

Features (as of 0.1.2):

  • monitors Location, ScreenCast, and RemoteDesktop portal sessions
  • triggers configured scripts/command when these sessions are created/closed

Example use case:

  • I’m using eww as my status bar across the top of my screen
  • I wanted to show/hide indicators whenever an application was using the ScreenCast portal (e.g. https://meet.jit.si/ or Zoom, or Teams, or whatever)
  • so I’m using xdp-hook to detect when any application creates a ScreenCast session, and update the state in eww accordingly so that a blinking widget is displayed/removed

Suggestions and code contributions are welcome :)

Ooh that’s nice ! Didn’t read the code but could it support generic hooks so that you can catch all portal events to “profile” whatever certain flatpak app is doing?

@jokeyrhyme@lemmy.ml
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22Y

So far, from what I’ve learned about dbus and xdg-desktop-portal messages, we could definitely have catch-all hooks like that ( https://gitlab.com/jokeyrhyme/xdp-hook-rs/-/issues/2 )

What’s not clear to me yet, however, is how i can trace the ownership of such messages back to the processes that initiated them

dbus sender/receiver IDs are just arbitrary text, and don’t seem to have a reliable relationship with the caller

I do have this on my roadmap though ( https://gitlab.com/jokeyrhyme/xdp-hook-rs#roadmap )

I’m not familiar with dbus, but i had a quick look. I don’t know the difference between a bus and a connection, btu apparently:

Not sure if the latter would accept the result from the former as a valid parameter, but this SO thread suggested so.

@jokeyrhyme@lemmy.ml
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02Y

Oh, nice

And it looks like the “zbus” library that I’m using exposes the equivalent functionality: https://docs.rs/zbus/2.1.1/zbus/fdo/struct.DBusProxy.html#method.get_connection_unix_process_id

Is there a good intro document for xdg coding?#

@jokeyrhyme@lemmy.ml
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02Y

Start with the home page: https://www.freedesktop.org/wiki/Software/dbus/

There are a few “introduction” resources and an FAQ linked there that seem like a good start

The “dbus” part is really the hard part of working with xdg-desktop-portal, at least in my own experience

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