Editing Xmonad/Using xmonad in Gnome (section)

===Ubuntu Wily===

As for the other methods, some simple configuration files are needed in /usr/share/... directories. I try to keep this section self contained. 

There are 4 files needed in this method:
* A ".desktop" configuration file in "/usr/share/xsessions/". The file populates the display manager (lightdm in my case) with a desktop environment listing that a user can select when logging in.
<pre> >cat /usr/share/xsessions/gnome-xmonad.desktop</pre>
<pre>
[Desktop Entry]
Name=GNOME with Xmonad
Comment=A GNOME fallback mode session using xmonad as the window manager.
Exec=/usr/bin/gnome-session-xmonad
TryExec=/usr/bin/gnome-session
Icon=
Type=Application
</pre>
* An executable, somewhere, which invokes the "xmonad" gnome session. The script must be pointed to by the xsession config, above. 
<pre>
>cat /usr/bin/gnome-session-xmonad 
</pre>
<pre>
#!/bin/sh
exec gnome-session --session=xmonad "$@"
</pre>
* The gnome "xmonad" session config in /usr/share/gnome-session/sessions/ .  This configuration file describes the xmonad session invoked by the script. It is responsible for declaring the various components loaded by gnome.
<pre>
>cat /usr/share/gnome-session/sessions/xmonad.session 
</pre>
<pre>
[GNOME Session]
Name=XMonad/Unity
RequiredComponents=gnome-flashback-init;gnome-flashback;xmonad;unity-settings-daemon;gnome-flashback-services;
</pre>
:This file was copied from the distribution's "gnome-flashback-metacity", session file, with metacity replaced with xmonad. Also, "gnome-panel" was not loading on log-in, so I removed it from here. 
* /usr/share/applications/xmonad.desktop : This configuration file tells gnome about the xmonad application, so that it can be loaded in the session file.
<pre>
>cat /usr/share/applications/xmonad.desktop 
</pre>
<pre>
[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=Xmonad
Exec=xmonad
NoDisplay=true
X-GNOME-WMName=Xmonad
X-GNOME-Autostart-Phase=WindowManager
X-GNOME-Provides=windowmanager
X-GNOME-Autostart-Notify=false
</pre>

As A final step, gnome-panel wasn't loading up properly so on first log-in I started a terminal (ctl+Meta+Enter for my xmonad key bindings) and entered gnome-panel at the prompt. From the panel, I went to systemTools>preferences>startupApplications and added an entry for gnome-panel.