X/getXenv.inc

   1 # Extracted from /etc/acpi/powerbtn.sh and modified
   2 # shuber@sthu.org
   3
   4
   5 # Taken from Debian's 2.0.4-1 diff file.  This version handles KDE4.
   6 # Power Button event handler.
   7 # Checks to see if gnome or KDE are already handling the power button.
   8 # If not, initiates a plain shutdown.
   9
  10 # getXuser gets the X user belonging to the display in $displaynum.
  11 # If you want the foreground X user, use getXconsole!
  12 # Input:
  13 #   displaynum - X display number
  14 # Output:
  15 #   XUSER - the name of the user
  16 #   XAUTHORITY - full pathname of the user's .Xauthority file
  17 getXuser() {
  18         user=`pinky -fw | awk '{ if ($2 == ":'$displaynum'" || $(NF) == ":'$displaynum'" ) { print $1; exit; } }'`
  19         if [ x"$user" = x"" ]; then
  20                 startx=`pgrep -n startx`
  21                 if [ x"$startx" != x"" ]; then
  22                         user=`ps -o user --no-headers $startx`
  23                 fi
  24         fi
  25         if [ x"$user" != x"" ]; then
  26                 userhome=`getent passwd $user | cut -d: -f6`
  27                 export XAUTHORITY=$userhome/.Xauthority
  28         else
  29                 export XAUTHORITY=""
  30         fi
  31         export XUSER=$user
  32 }
  33
  34 # Gets the X display number for the active virtual terminal.
  35 # Output:
  36 #   DISPLAY - the X display number
  37 #   See getXuser()'s output.
  38 getXconsole() {
  39         pid=$(pgrep -x X | head -n 1)
  40         if [ x"$pid" != x"" ]; then
  41                 displaynum=`ps -p "$pid" -o args | sed -n -re 's,.*/X .*:([0-9]+).*,\1,p'`
  42                 if [ x"$displaynum" != x"" ]; then
  43                         export DISPLAY=":$displaynum"
  44                         getXuser
  45                 fi
  46         fi
  47 }