Brandon Allbery [2012.02.04 1425 -0500]:

On Sat, Feb 4, 2012 at 14:09, Norbert Zeh wrote:

I'm currently experimenting with using window decorations (NoFrillsDecoration at this point).  While I normally want decorations on my windows, there are situations where I would like to remove the decoration from individual windows and latter restore the decoration.  Is there already a layout modifier or other mechanism that does this?  If there isn't, that's no biggie because I have an

XMonad.Layout.MultiToggle One of the standard modifier toggles turns server-side borders on/off dynamically; you should be able to use the provided examples to work out how to toggle a Decorations-based modifier.

Excellent! Thanks. - Norbert

On Sat, Feb 4, 2012 at 14:35, Norbert Zeh wrote:

Brandon Allbery [2012.02.04 1425 -0500]:

...

XMonad.Layout.MultiToggle One of the standard modifier toggles turns server-side borders on/off dynamically; you should be able to use the provided examples to work out how to toggle a Decorations-based modifier.

Cried hurray too quickly. MultiToggle seems to operate on entire layouts. If I have, say, 4 windows on a decorated layout, what I'd like to do is leave 3 of them decorated, while removing the decoration from only one of the windows. By

Ah. That'd be harder, yes, although think it's doable; take a look at XMonad.Layout.Decoration.

"decoration", I don't mean borders. I mean the title bar added by

Right. Most (all?) of those are based on XMonad.Layout.Decoration. -- brandon s allbery allbery.b@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms

Norbert Zeh [2012.02.04 1606 -0400]:

Brandon Allbery [2012.02.04 1449 -0500]:

...

On Sat, Feb 4, 2012 at 14:35, Norbert Zeh wrote:

Brandon Allbery [2012.02.04 1425 -0500]: > XMonad.Layout.MultiToggle > One of the standard modifier toggles turns server-side borders on/off > dynamically; you should be able to use the provided examples to work out how to > toggle a Decorations-based modifier.

Cried hurray too quickly.  MultiToggle seems to operate on entire layouts.  If I have, say, 4 windows on a decorated layout, what I'd like to do is leave 3 of them decorated, while removing the decoration from only one of the windows.  By

Ah.  That'd be harder, yes, although  think it's doable; take a look at XMonad.Layout.Decoration.  

"decoration", I don't mean borders.  I mean the title bar added by

Right.  Most (all?) of those are based on XMonad.Layout.Decoration.

Indeed. My idea of implementing this, though, was not to implement a new decoration based on the framework provided by X.L.Decoration but to provide a general layout modifier that allows me to toggle the decorations added by any X.L.Decoration-based layout modifier. I was thinking about storing the windows that currently shouldn't have decoration in ExtensibleState. Then, I'd have to see how X.L.Decoration implements the addition of the tabs/titlebars. I would suspect it takes the rectangles provided by the underlying layout, shrinks them to make room for the title bar, and draws the title bar. If I can somehow hook in my modifier as an intermediary that invokes the underlying layout, puts the windows that should not be decorated aside, passes the remaining windows to the decoration modifier, and finally puts all together, that would be ideal. I'll have to think a bit about how to do this cleanly. For now, I just wanted to know whether what I want can already be done essentially out of the box using some existing modules. Seems like the answer is no.

Alright. Got something working. It's still a bit rough around the edges and needs some testing, and it also isn't quite as general as I would have liked. So I'll keep tinkering for a while, but at least it seems to do exactly what I initially stated I wanted. In the end, I actually ended up providing what essentially amounts to a DecorationModifier, wrapped in a LayoutModifier in order to receive messages the Decoration layout modifier does not handle. Ugh, but it was the cleanest solution I was able to come up with, given the way decorations are currently implemented. Cheers, Norbert