Re: [xmonad] nedit-nc -tabbed no longer working

Ben Franksen wrote:

Brandon Allbery wrote:

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On Mon, Apr 2, 2012 at 11:43, Ben Franksen wrote:

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A few xmonad-versions ago 'nedit-nc -tabbed' suddenly stopped working. Instead of opening the file as a new tab inside the running session, a new window is opened. If no session is already running, I get _two_ windows, one with the file I specified (on the command line) and one with a new file ('untitled'), which is quite annoying, especially in a tiling wm such as xmonad.

I don't quite understand this claim... the most recent release was 0.10.0, and before that 0.9.2 which was close to a year older, and before that 0.9.1 which was close to *two years* earlier.

It is long ago. Could be a year or longer, maybe even 2 years.

...

I will also note that xmonad cannot normally affect the communications channel between the nc client and server, which presumably is a root window property as is done by most X11-based programs. It can *read* the property, it could even remove it itself if someone wrote the code to do so, but even then there would be a race condition between it and the server and the server would often win the race.

The communication via properties of the root window (which is indeed what nedit does to talk to the server) works fine.

I did some printf debugging with nedit and actually found the problem (yay):

Nedit expects its own windows to have a property _NET_WM_DESKTOP of type CARDINAL. This is the desktop number. But xmonad does not set that property. Whereas under e.g. kde, I get (on the first desktop):

ben@sarun[1]: .../deb/hacking > xprop | grep _NET_WM_DESKTOP _NET_WM_DESKTOP(CARDINAL) = 0

So, here is my next question: is this a property that the wm should set?

This page:

http://standards.freedesktop.org/wm-spec/wm-spec-latest.html#id2577925

seems to say so.

I see now that there is XMonad.Hooks.EwmhDesktops in xmonad-contrib to support "Extended Window Manager Hints", of which _NET_WM_DESKTOP is one. Will try this and report back. Cheers Ben