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According to the ICCCM, clients should send a synthetic unmap event when they
initiate an unmap. The old code waited for these synthetic unmaps to unmanage
windows. However, certain 'obsolete' clients do not send synthetic unmaps
(notably xpdf's find dialog). These windows entered a zombified state: xmonad
does not manage them, yet they are still mapped and raised on screen.
The new algorithm (derived from wmii):
- track windows that are mapped on screen
- track the number of expected unmap events for each window, increment every
time 'hide' is called on a window that is not mapped.
- decrement the expected unmap counter on each unmap event
- treat an unmap event as genuine (ie. unmap the window) when:
- the event is synthetic (per ICCCM)
- OR there are no expected unmap events for this window
xmonad : a lightweight X11 window manager.
http://xmonad.org
------------------------------------------------------------------------
About:
Xmonad is a tiling window manager for X. Windows are managed using
automatic tiling algorithms, which can be dynamically configured.
Windows are arranged so as to tile the screen without gaps, maximising
screen use. All features of the window manager are accessible
from the keyboard: a mouse is strictly optional. Xmonad is written
and extensible in Haskell, and custom layout algorithms may be
implemented by the user in config files. A guiding principle of the
user interface is <i>predictability</i>: users should know in
advance precisely the window arrangement that will result from any
action, leading to an intuitive user interface.
Xmonad provides three tiling algorithms by default: tall, wide and
fullscreen. In tall or wide mode, all windows are visible and tiled
to fill the plane without gaps. In fullscreen mode only the focused
window is visible, filling the screen. Alternative tiling
algorithms are provided as extensions. Sets of windows are grouped
together on virtual workspaces and each workspace retains its own
layout. Multiple physical monitors are supported via Xinerama,
allowing simultaneous display of several workspaces.
Adhering to a minimalist philosophy of doing one job, and doing it
well, the entire code base remains tiny, and is written to be simple
to understand and modify. By using Haskell as a configuration
language arbitrarily complex extensions may be implemented by the
user using a powerful `scripting' language, without needing to
modify the window manager directly. For example, users may write
their own tiling algorithms.
------------------------------------------------------------------------
Building:
Get the dependencies
It is likely that you already have some of these dependencies. To check
whether you've got a package run 'ghc-pkg list some_package_name'
mtl http://hackage.haskell.org/cgi-bin/hackage-scripts/package/mtl-1.0
(Included with GHC)
unix http://hackage.haskell.org/cgi-bin/hackage-scripts/package/unix-2.0
(Included with GHC)
X11 http://hackage.haskell.org/cgi-bin/hackage-scripts/package/X11-1.2.2
(Included with GHC)
X11-extras: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/X11-extras-0.2
And then build with Cabal:
runhaskell Setup.lhs configure --prefix=/home/dons
runhaskell Setup.lhs build
runhaskell Setup.lhs install --user
------------------------------------------------------------------------
Running xmonad:
Add:
exec /home/dons/bin/xmonad
to the last line of your .xsession or .xinitrc file.
------------------------------------------------------------------------
Other useful programs:
For a program dispatch menu:
dmenu http://www.suckless.org/download/
or
gmrun (in your package system)
For custom status bars:
dzen http://gotmor.googlepages.com/dzen
A nicer xterm replacment, that supports resizing better:
urxvt http://software.schmorp.de/pkg/rxvt-unicode.html
Authors:
Spencer Janssen
Don Stewart
Jason Creighton