Re: Window stacking order

[Ivan Vučica]

 that's more intended to be a 'full environment' that doesn't back 

I've started work on my own WM, but it's a mess and paused while I do another WM for university. (Since my university will claim copyright and did not explicitly let me release it under a free license, I don't intend to make it too useful -- only a learning step so I can write a proper WM).

Could you investigate window properties that may make window managers treat GNUstep windows differently? If windows have incorrect behavior, it would be very useful to fix all GNUstep apps (by fixing gnustep-back) and not require a new window manager.

I'm afraid I also find your description of the problem a bit under-detailed to be able to look at "when I have time". I'd like to be able to think what /should/ happen before actually recreating the environment. Can you specify a minimal demo environment under Ubuntu, listing:

- an X11 app

- a desktop environment

- a WM

- detailed repro steps ('i launched x, i launched y, i focused on always-on-top u, i clicked on v, v came above u')

- expected behavior

- how is always-on-top property specified -- through EWMH or by using WM's UI

On Tue, Nov 11, 2014 at 2:46 PM, Lundberg, Johannes <johannes@brilliantservice.co.jp> wrote:

Thanks for the reply!

I tried Windowmaker, awesome, openbox.. 

It seems like Etoile guys started working on a window manager for Gnustep which would address this problem among things. A problem many seem to have (or maybe had). Don't remember the name, Az-something. Anyone know the status of this project?

On Tuesday, November 11, 2014, Ivan Vučica <ivan@vucica.net> wrote:

Without looking deeper into this, I would highly suspect that window manager hints (such as those specified in ICCCM and EWMH) are not applied completely correctly. But you should first ensure that GNUstep is indeed doing something wrong; it is also fairly possible that OpenBox doesn't do things correctly. What happens with Metacity and WindowMaker?

I'd start investigation by trying to use wmctrl to determine EWMHints -- I never used it, but it claims to be able to interact with EWMH atoms -- and xwininfo to determine ICCCM-defined things. Then I'd try figuring out where the incorrect stuff is done in gnustep-back (if it's done incorrectly at all).

See ICCCM spec and EWMH spec. 

While cursorily reminding myself of the specs, I ran into the suggestion that EWMH window type stored in _NET_WM_WINDOW_TYPE should determine the window order, as should _NET_WM_STATE_ABOVE. 

So I'd start investigation by looking at interaction between OpenBox and value of _NET_WM_STATE/_NET_WM_WINDOW_TYPE.

On Tue, Nov 11, 2014 at 9:07 AM, Lundberg, Johannes <johannes@brilliantservice.co.jp> wrote:

This applies to decor/borderless windows (<decor>no</decor> in openbox rc.xml).

If there are decors, it works as expected.

--

Johannes Lundberg

On Tue, Nov 11, 2014 at 5:55 PM, Lundberg, Johannes <johannes@brilliantservice.co.jp> wrote:

Hi

I tried several different window managers on Linux and on all of them I can not get GNUstep apps to play nicely with other apps when it comes to windows stacking order.

Currently I am using openbox and trying to configure an always on top X11 app but the GNUstep app gets on top when given focus even though it shouldn't. Other apps (stock X11 apps) do not get on top when focused.

Anyone know any fix for this?

Best regards

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Johannes Lundberg

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